MathematicsBeginner

Primes and composites

One is neither prime nor composite

Estimated time · 8 min 10 Content blocks

Core concepts

Formulas

20 \text{ 以内的质数}: 2,3,5,7,11,13,17,19

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Solution

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Worked examples

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Worked examples

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Exercises

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Glossary

Prime
Composite

Prerequisites

Factors and multiples8 min

Practice set

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