# Factoring & Primes

Free Math Games & Activities for Kids

**
Factoring and Prime**

**
Factor, in mathematics, a number or algebraic expression that divides another
number or expression evenly—i.e., with no remainder. For example, 3 and 6 are
factors of 12 because 12 ÷ 3 = 4 exactly and 12 ÷ 6 = 2 exactly. The other
factors of 12 are 1, 2, 4, and 12**

**
Prime Numbers are numbers that
only had two factors: one and themselves. For example five is a prime number
because the only way of writing it as a product is 1x5 or 5x1 and both involve
using 5 by itself.**

**
Prime numbers to 200:**

**
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73,
79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163,
167, 173, 179, 181, 191, 193, 197, 199, etc.**

**
Factoring and Prime Number Games:**

Find a prime (online interactive)

Common Core Prime number worksheet with available answer sheet

Classroom Prime Number Game with Cards

Phone Game with QR code Prime Numbers