Question

how to find the common factors of any 2 numbers​

Answer 1

First, factorise the numbers (say, 35 and 42) into their prime factors.

35=5×7

42=2×3×7

See which number(s) appear in both.

Here, it is 7.

So, the common factor here is 7.

Answer 2

First, factorise the numbers (say, 35 and 42) into their prime factors.

35=5×7

42=2×3×7

See which number(s) appear in both.

Here, it is 7.

So, the common factor here is 7.