GCF LCM Prime Factorization

Front

First 8 prime numbers

Back

2, 3, 5, 7, 11, 13, 17, 19

Front

Composite number

Back

51

Front

LCM of 4 and 18

Back

36

Front

Prime factorization of 36

Back

2 x 2 x 3 x 3

Front

Prime factorization of 168

Back

2 × 2 × 2 × 3 × 7

Front

GCF of 64 and 144

Back

16

Front

Greatest factor of 28 and 49

Back

7

Front

LCM of 4 and 12

Back

12

Front

Divisibility rule for 3

Back

Sum of digits must be divisible by 3

Front

LCM of 18 and 24

Back

72