📖 Math Dictionary

Prime Number

Definition

A prime number is a natural number greater than 1 that has exactly two factors: 1 and itself. It cannot be evenly divided by any other number.

💡Example

First 10 prime numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29. Note: 2 is the only even prime. Numbers like 4, 6, 8, 9 are NOT prime (they have more factors).

🎓Used in Grades

Grades 4-8KS2/KS3

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prime factorization →number theory →

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