# OCME · Knowledge & practice explorer

302 MKO / 1,441 families / 360 batches / 36,000 questions.

36,000 second-context math/bilingual reviewed; 0 display/symbol-checked candidates. Source questions: candidate. English: ai_candidate. No new proof, Lean, SREG or training.

1 results; page 1/1.

## Question 5360: Full Product Choices and Prefix Counts

- ID: `q-20261008-advance-20261012-r02-counting-principle-0035`; number: 5360
- Processing: second_context_reviewed
- MKO: [mko-counting-principle](/en/mko/mko-counting-principle/)
- Family: [qf-density12-counting-full-product-prefix](/en/explore/?family=qf-density12-counting-full-product-prefix)
- Batch: [batch-20261008-advance-20261012-r02-counting-principle-foundations](/en/explore/?batch=batch-20261008-advance-20261012-r02-counting-principle-foundations)
- [Derivation](/en/questions/q-20261008-advance-20261012-r02-counting-principle-0035/) / [Markdown](/en/questions/q-20261008-advance-20261012-r02-counting-principle-0035/index.md) / [JSON](/data/question-derivations/questions/q-20261008-advance-20261012-r02-counting-principle-0035.json)