Maths Dictionary · JSS 1

Prime number

Simple meaning

A whole number bigger than 1 with exactly two factors: 1 and itself.

Example

2, 3, 5, 7, 11 and 13 are prime. 1 is not prime.

See it

From the Factors and Prime Numbers lesson. Try moving things around.

12 = 3 × 4 ✓ — a rectangle!

Dots

12

Rows

3

Factors found:

34