Question

Hcf of 20,80 and 128

Answer 1

The greatest common factor is 4.

Solution by Factorization:

The factors of 20 are: 1, 2, 4, 5, 10, 20

The factors of 80 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

The factors of 128 are: 1, 2, 4, 8, 16, 32, 64, 128

Then the greatest common factor is 4.