{
  "schema_version": "ocme-reviewed-question-reader-v1",
  "question_id": "q-20261014-advance-20261108-r06-unique-prime-factorization-0042",
  "pilot_number": "R0041-21317",
  "number": 21317,
  "family_id": "qf-mod39-upf-canonical-factorization",
  "title": {
    "zh-Hant": "第 21317 題：整數唯一質因數分解",
    "en": "Question 21317: Complete Trial Division Produces the Canonical Prime Multiset"
  },
  "original_question": {
    "schema_version": "ocme-question-v0.1",
    "id": "q-20261014-advance-20261108-r06-unique-prime-factorization-0042",
    "batch_id": "batch-20261014-advance-20261108-r06-unique-prime-factorization-foundations",
    "language": "zh-Hant",
    "source_mko_ids": [
      "mko-unique-prime-factorization"
    ],
    "title_zh": "整數唯一質因數分解",
    "stem_zh": "完整bounded integer factorization與exact primality。操作=upf-canonical-factorization；資料={\"n\":354}。請依 exact_ordered_tuple_declared_by_interface 欄序回答。",
    "answer": {
      "kind": "expression",
      "value": "(354, [2, 3, 59], [[2, 1], [3, 1], [59, 1]], 354, 是, complete_trial_division_range)",
      "explanation_zh": "Wave6第二層核對=(354, [2, 3, 59], [[2, 1], [3, 1], [59, 1]], 354, 是, complete_trial_division_range)；依完整明示資料獨立重算；positive n大於1的prime multiset唯一至多差順序；existence與uniqueness分開；uniqueness保留Euclid-lemma witness；負數分離minus one，units空乘積，zero無此factorization。"
    },
    "difficulty": {
      "band": "undergraduate_core",
      "level": 2,
      "skills": [
        "整數唯一質因數分解"
      ]
    },
    "variant": {
      "family_id": "qf-mod39-upf-canonical-factorization",
      "seed": 202611086042,
      "parameters": {
        "n": 354,
        "domain": "Exact_integer_unique_prime_factorization",
        "operation": "upf-canonical-factorization",
        "semantic_template": "qf-mod39-upf-canonical-factorization/{\"n\":354}"
      }
    },
    "verification": {
      "status": "candidate",
      "checks": [
        "producer_exact_finite_or_symbolic_model",
        "producer_source_snapshot_check",
        "producer_substantive_template_deduplication",
        "producer_json_schema"
      ],
      "warning_zh": "候選須主端重算；不構成人工審定、single-step orbit、finite-prefix monotonicity、ambient-relative topology混同、Chebyshev equality、pairwise-only容斥、無Euclid-lemma uniqueness、loopful digraph、Lean或Evidence。"
    },
    "provenance": {
      "generator_role": "question_producer",
      "generator_model": "model_unknown",
      "generated_at": "2026-10-14",
      "contract_version": "ocme-question-factory-v0.1"
    }
  },
  "original_english_edition": {
    "schema_version": "ocme-question-localization-v0.1",
    "question_id": "q-20261014-advance-20261108-r06-unique-prime-factorization-0042",
    "batch_id": "batch-20261014-advance-20261108-r06-unique-prime-factorization-foundations",
    "locale": "en",
    "translation_state": "ai_candidate",
    "source": {
      "question_sha256": "2faaea4aeba80a93882e9e71864968c1d801f0c56ac3a691e70ef274ddfdf3a8",
      "family_id": "qf-mod39-upf-canonical-factorization",
      "seed": 202611086042,
      "semantic_template": "qf-mod39-upf-canonical-factorization/{\"n\":354}"
    },
    "fields": {
      "title": "Complete Trial Division Produces the Canonical Prime Multiset",
      "stem": "Use positive integer n=354>1. Give (n, prime_multiset, exponents, product, complete_factorization_certificate, certificate).",
      "answer": {
        "kind": "expression",
        "value": "(354, [2, 3, 59], [[2, 1], [3, 1], [59, 1]], 354, Yes, complete_trial_division_range)",
        "explanation": "Divide by every candidate divisor through the square root of the remaining factor, retaining the final prime remainder. Report the increasingly ordered prime multiset, prime/exponent counts and exact full product. This complete bounded computation is not the general existence/uniqueness proof. The exact result, retaining the requested order, is (354, [2, 3, 59], [[2, 1], [3, 1], [59, 1]], 354, Yes, complete_trial_division_range)."
      },
      "skills": [
        "Complete Trial Division Produces the Canonical Prime Multiset"
      ],
      "verification_warning": "This is a candidate exercise. Mechanical recomputation checks only the stated conditions and this instance; it is neither a formal proof nor human review."
    }
  },
  "givens": [
    {
      "id": "G001",
      "text": {
        "zh-Hant": "完整bounded integer factorization與exact primality。操作=upf-canonical-factorization；資料={\"n\":354}。請依 exact_ordered_tuple_declared_by_interface 欄序回答。",
        "en": "Use positive integer n=354>1. Give (n, prime_multiset, exponents, product, complete_factorization_certificate, certificate)."
      }
    }
  ],
  "steps": [
    {
      "id": "S001",
      "uses": [
        "G001"
      ],
      "before": "source operation=upf-canonical-factorization;original snapshot and mathematics retained",
      "after": "explicit ordered source output fields=[n, prime_multiset, exponents, product, complete_factorization_certificate, certificate]",
      "relation": "implies",
      "rule_id": "source_ordered_interface_explicit_without_javascript",
      "conditions": [],
      "explanation": {
        "zh-Hant": "原題歷史介面標記保留；此處直接列有序輸出欄位，不依賴JavaScript。欄位或tag不是額外數學證據，固定No保留原聲稱範圍。",
        "en": "Retain the historical interface marker while listing ordered output fields without JavaScript.Fields and tags are not extra mathematical evidence;fixed No markers retain their claim scope."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "回到原始資料與本步條件核對，不把單向推論誤稱等價。",
          "en": "Check against the original data and this step's premises; a one-way implication is not an equivalence."
        }
      },
      "arithmetic": null
    },
    {
      "id": "S002",
      "uses": [
        "G001",
        "S001"
      ],
      "before": "ORIGINAL positive integer absolute magnitude=354>1",
      "after": "initialize remaining=n,prime multiset empty;invariant product(extracted)*remaining=n;every smaller trial divisor has been exhausted",
      "relation": "implies",
      "rule_id": "upf_factorization_remaining_product_invariant",
      "conditions": [],
      "explanation": {
        "zh-Hant": "每次只除真正整除的d，並以已窮盡更小因數維持d為prime的理由，不先假定原n為prime。",
        "en": "Divide only by an actual divisor and exhaust smaller candidates,which justifies primality of each extracted divisor without assuming n is prime."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "回到原始資料與本步條件核對，不把單向推論誤稱等價。",
          "en": "Check against the original data and this step's premises; a one-way implication is not an equivalence."
        }
      },
      "arithmetic": null
    },
    {
      "id": "S003",
      "uses": [
        "G001",
        "S002"
      ],
      "before": "upf extract divisor2 occurrence0 := div(354, 2)",
      "after": "upf extract divisor2 occurrence0 = 177",
      "relation": "calculation",
      "rule_id": "exact_rational_arithmetic",
      "conditions": [],
      "explanation": {
        "zh-Hant": "依原題角色與已核中間量精確代值，保留原順序、正負號及量詞條件。",
        "en": "Substitute the original roles and established intermediates exactly,retaining order,signs and quantified conditions."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "以精確有理數重算 upf extract divisor2 occurrence0，不以小數近似替代。",
          "en": "Recompute upf extract divisor2 occurrence0 with exact rational arithmetic, not rounded decimals."
        }
      },
      "arithmetic": {
        "operation": "div",
        "inputs": [
          "354",
          "2"
        ],
        "output": "177",
        "label": "upf extract divisor2 occurrence0"
      }
    },
    {
      "id": "S004",
      "uses": [
        "G001",
        "S003"
      ],
      "before": "next divisor=2;previous remaining=354;all smaller divisors exhausted",
      "after": "extracted multiplicity=1;next remaining=177;remaining modulo2=1;extracted multiset=[2]",
      "relation": "implies",
      "rule_id": "upf_complete_trial_division_remaining_invariant",
      "conditions": [],
      "explanation": {
        "zh-Hant": "除盡同一prime的所有重數才前進；不把n的原平方根與remaining的停止責任混淆，也不漏最後的prime remainder。",
        "en": "Exhaust every multiplicity before advancing.The stopping test concerns the current remainder,and the final prime remainder must not be omitted."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "回到原始資料與本步條件核對，不把單向推論誤稱等價。",
          "en": "Check against the original data and this step's premises; a one-way implication is not an equivalence."
        }
      },
      "arithmetic": null
    },
    {
      "id": "S005",
      "uses": [
        "G001",
        "S004"
      ],
      "before": "upf extract divisor3 occurrence1 := div(177, 3)",
      "after": "upf extract divisor3 occurrence1 = 59",
      "relation": "calculation",
      "rule_id": "exact_rational_arithmetic",
      "conditions": [],
      "explanation": {
        "zh-Hant": "依原題角色與已核中間量精確代值，保留原順序、正負號及量詞條件。",
        "en": "Substitute the original roles and established intermediates exactly,retaining order,signs and quantified conditions."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "以精確有理數重算 upf extract divisor3 occurrence1，不以小數近似替代。",
          "en": "Recompute upf extract divisor3 occurrence1 with exact rational arithmetic, not rounded decimals."
        }
      },
      "arithmetic": {
        "operation": "div",
        "inputs": [
          "177",
          "3"
        ],
        "output": "59",
        "label": "upf extract divisor3 occurrence1"
      }
    },
    {
      "id": "S006",
      "uses": [
        "G001",
        "S005"
      ],
      "before": "next divisor=3;previous remaining=177;all smaller divisors exhausted",
      "after": "extracted multiplicity=1;next remaining=59;remaining modulo3=2;extracted multiset=[2, 3]",
      "relation": "implies",
      "rule_id": "upf_complete_trial_division_remaining_invariant",
      "conditions": [],
      "explanation": {
        "zh-Hant": "除盡同一prime的所有重數才前進；不把n的原平方根與remaining的停止責任混淆，也不漏最後的prime remainder。",
        "en": "Exhaust every multiplicity before advancing.The stopping test concerns the current remainder,and the final prime remainder must not be omitted."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "回到原始資料與本步條件核對，不把單向推論誤稱等價。",
          "en": "Check against the original data and this step's premises; a one-way implication is not an equivalence."
        }
      },
      "arithmetic": null
    },
    {
      "id": "S007",
      "uses": [
        "G001",
        "S006"
      ],
      "before": "next divisor=4;previous remaining=59;all smaller divisors exhausted",
      "after": "extracted multiplicity=0;next remaining=59;remaining modulo4=3;extracted multiset=[2, 3]",
      "relation": "implies",
      "rule_id": "upf_complete_trial_division_remaining_invariant",
      "conditions": [],
      "explanation": {
        "zh-Hant": "除盡同一prime的所有重數才前進；不把n的原平方根與remaining的停止責任混淆，也不漏最後的prime remainder。",
        "en": "Exhaust every multiplicity before advancing.The stopping test concerns the current remainder,and the final prime remainder must not be omitted."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "回到原始資料與本步條件核對，不把單向推論誤稱等價。",
          "en": "Check against the original data and this step's premises; a one-way implication is not an equivalence."
        }
      },
      "arithmetic": null
    },
    {
      "id": "S008",
      "uses": [
        "G001",
        "S007"
      ],
      "before": "next divisor=5;previous remaining=59;all smaller divisors exhausted",
      "after": "extracted multiplicity=0;next remaining=59;remaining modulo5=4;extracted multiset=[2, 3]",
      "relation": "implies",
      "rule_id": "upf_complete_trial_division_remaining_invariant",
      "conditions": [],
      "explanation": {
        "zh-Hant": "除盡同一prime的所有重數才前進；不把n的原平方根與remaining的停止責任混淆，也不漏最後的prime remainder。",
        "en": "Exhaust every multiplicity before advancing.The stopping test concerns the current remainder,and the final prime remainder must not be omitted."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "回到原始資料與本步條件核對，不把單向推論誤稱等價。",
          "en": "Check against the original data and this step's premises; a one-way implication is not an equivalence."
        }
      },
      "arithmetic": null
    },
    {
      "id": "S009",
      "uses": [
        "G001",
        "S008"
      ],
      "before": "next divisor=6;previous remaining=59;all smaller divisors exhausted",
      "after": "extracted multiplicity=0;next remaining=59;remaining modulo6=5;extracted multiset=[2, 3]",
      "relation": "implies",
      "rule_id": "upf_complete_trial_division_remaining_invariant",
      "conditions": [],
      "explanation": {
        "zh-Hant": "除盡同一prime的所有重數才前進；不把n的原平方根與remaining的停止責任混淆，也不漏最後的prime remainder。",
        "en": "Exhaust every multiplicity before advancing.The stopping test concerns the current remainder,and the final prime remainder must not be omitted."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "回到原始資料與本步條件核對，不把單向推論誤稱等價。",
          "en": "Check against the original data and this step's premises; a one-way implication is not an equivalence."
        }
      },
      "arithmetic": null
    },
    {
      "id": "S010",
      "uses": [
        "G001",
        "S009"
      ],
      "before": "next divisor=7;previous remaining=59;all smaller divisors exhausted",
      "after": "extracted multiplicity=0;next remaining=59;remaining modulo7=3;extracted multiset=[2, 3]",
      "relation": "implies",
      "rule_id": "upf_complete_trial_division_remaining_invariant",
      "conditions": [],
      "explanation": {
        "zh-Hant": "除盡同一prime的所有重數才前進；不把n的原平方根與remaining的停止責任混淆，也不漏最後的prime remainder。",
        "en": "Exhaust every multiplicity before advancing.The stopping test concerns the current remainder,and the final prime remainder must not be omitted."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "回到原始資料與本步條件核對，不把單向推論誤稱等價。",
          "en": "Check against the original data and this step's premises; a one-way implication is not an equivalence."
        }
      },
      "arithmetic": null
    },
    {
      "id": "S011",
      "uses": [
        "G001",
        "S010"
      ],
      "before": "upf canonical complete product factor0 := mul(1, 2)",
      "after": "upf canonical complete product factor0 = 2",
      "relation": "calculation",
      "rule_id": "exact_rational_arithmetic",
      "conditions": [],
      "explanation": {
        "zh-Hant": "依原題角色與已核中間量精確代值，保留原順序、正負號及量詞條件。",
        "en": "Substitute the original roles and established intermediates exactly,retaining order,signs and quantified conditions."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "以精確有理數重算 upf canonical complete product factor0，不以小數近似替代。",
          "en": "Recompute upf canonical complete product factor0 with exact rational arithmetic, not rounded decimals."
        }
      },
      "arithmetic": {
        "operation": "mul",
        "inputs": [
          "1",
          "2"
        ],
        "output": "2",
        "label": "upf canonical complete product factor0"
      }
    },
    {
      "id": "S012",
      "uses": [
        "G001",
        "S011"
      ],
      "before": "upf canonical complete product factor1 := mul(2, 3)",
      "after": "upf canonical complete product factor1 = 6",
      "relation": "calculation",
      "rule_id": "exact_rational_arithmetic",
      "conditions": [],
      "explanation": {
        "zh-Hant": "依原題角色與已核中間量精確代值，保留原順序、正負號及量詞條件。",
        "en": "Substitute the original roles and established intermediates exactly,retaining order,signs and quantified conditions."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "以精確有理數重算 upf canonical complete product factor1，不以小數近似替代。",
          "en": "Recompute upf canonical complete product factor1 with exact rational arithmetic, not rounded decimals."
        }
      },
      "arithmetic": {
        "operation": "mul",
        "inputs": [
          "2",
          "3"
        ],
        "output": "6",
        "label": "upf canonical complete product factor1"
      }
    },
    {
      "id": "S013",
      "uses": [
        "G001",
        "S012"
      ],
      "before": "upf canonical complete product factor2 := mul(6, 59)",
      "after": "upf canonical complete product factor2 = 354",
      "relation": "calculation",
      "rule_id": "exact_rational_arithmetic",
      "conditions": [],
      "explanation": {
        "zh-Hant": "依原題角色與已核中間量精確代值，保留原順序、正負號及量詞條件。",
        "en": "Substitute the original roles and established intermediates exactly,retaining order,signs and quantified conditions."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "以精確有理數重算 upf canonical complete product factor2，不以小數近似替代。",
          "en": "Recompute upf canonical complete product factor2 with exact rational arithmetic, not rounded decimals."
        }
      },
      "arithmetic": {
        "operation": "mul",
        "inputs": [
          "6",
          "59"
        ],
        "output": "354",
        "label": "upf canonical complete product factor2"
      }
    },
    {
      "id": "S014",
      "uses": [
        "G001",
        "S013"
      ],
      "before": "exhausted trial divisors below8;terminal remaining=59;d*d>remaining;ORIGINAL n=354",
      "after": "complete increasing prime multiset=[2, 3, 59];full product=354;a composite terminal remainder would have an already tested smaller divisor",
      "relation": "implies",
      "rule_id": "upf_final_prime_remainder_complete_existence_instance",
      "conditions": [],
      "explanation": {
        "zh-Hant": "若remaining>1仍合數，其最小prime因數會在已驗範圍，與除盡不變式矛盾，所以補入的末項為prime。這證本例完整分解；一般存在也可對n作強歸納，合數拆成較小正因數後遞歸。",
        "en": "If a terminal remainder greater than1 were composite,its least prime factor would already have been exhausted,a contradiction.The final entry is therefore prime.This certifies this instance;general existence follows by strong induction,recursively splitting a composite into smaller positive factors."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "回到原始資料與本步條件核對，不把單向推論誤稱等價。",
          "en": "Check against the original data and this step's premises; a one-way implication is not an equivalence."
        }
      },
      "arithmetic": null
    },
    {
      "id": "S015",
      "uses": [
        "G001",
        "S014"
      ],
      "before": "ORIGINAL n=354;complete prime multiset=[2, 3, 59]",
      "after": "ALL [prime,exponent] rows=[[2, 1], [3, 1], [59, 1]];product=354;no multiplicities discarded",
      "relation": "implies",
      "rule_id": "upf_exponents_keep_every_prime_multiplicity",
      "conditions": [],
      "explanation": {
        "zh-Hant": "逐不同prime保完整重數，不把multiset改成set。後續唯一性比較必須比較每個exponent，不只不同prime種類。",
        "en": "Retain every multiplicity,not just distinct prime support.Uniqueness compares all exponents,not only which prime species occur."
      },
      "reverse_audit": {
        "kind": "premise_and_result_audit",
        "explanation": {
          "zh-Hant": "回到原始資料與本步條件核對，不把單向推論誤稱等價。",
          "en": "Check against the original data and this step's premises; a one-way implication is not an equivalence."
        }
      },
      "arithmetic": null
    }
  ],
  "math_model": {
    "result": [
      354,
      [
        2,
        3,
        59
      ],
      [
        [
          2,
          1
        ],
        [
          3,
          1
        ],
        [
          59,
          1
        ]
      ],
      354,
      true,
      "complete_trial_division_range"
    ]
  },
  "conclusion": {
    "canonical_value": "(354, [2, 3, 59], [[2, 1], [3, 1], [59, 1]], 354, 是, complete_trial_division_range)",
    "explanation": {
      "zh-Hant": "依上列完整代值及條件核對得到原題答案；原題編號、格式與狀態保持不變。",
      "en": "The full substitutions and premise checks give the original answer; source identity,format and status are unchanged."
    }
  },
  "definition_note": {
    "zh-Hant": "沿用原題明示的論域、假設與來源 MKO 定義。本題已完成第二對話數理與中英語義覆核，並由原始參數逐題獨立重算模型、答案與每個算術步驟；原題仍為 candidate。",
    "en": "Use the original question domain, assumptions and cited MKO definitions. This item has second-context mathematical and bilingual review, with the model, answer and every arithmetic step independently recomputed from the original parameters; the source question remains a candidate."
  },
  "source": {
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