What are the common factors of 42 and 32?

Answer 1

The common factors are: 1, 2
To find the common factors of two numbers, you can find the factor pairs of each number:

1 x 32

2 x 16

4 x 8

1 x 42

2 x 21

3 x 14

6 x 7

The factors of 32 are 1, 2, 4, 8, 16, 32

The factors of 42 are 1, 2, 3, 6, 7, 14, 21, 42

The common factors are 1 and 2.

Answer 2

1 and 2