What is common factor of 48 and 42?

Answer 1

Factors are those whole numbers which can be multiplied together to make the target figure.

so for 42 factors are

42 x 1

21 x 2

14 x 3

7 x 6

and for 48 factors are

48 x 1

24 x 2

16 x 3

12 x 4

8 x 6

so the common factors are those numbers in both of these sets : 1, 2, 3 & 6

Answer 2

1, 2, 3, 6