Question

what is the hcf of 77 33 22

Answer 1

Factors of 22 = 1, 2, 11 and 22.

Factors of 33 = 1, 3, 11 and 33.

Factors of 77 = 1, 7, 11 and 77.

Here common factors are 1 and 11.

Since 11 is greatest no here.

So, Highest Common Factor of 22, 33 and 77 is 11.