Question

find the HCF of 42, 81 and 63 with process​

Answer 1

Answer:

Factors of 42 are 1,2,3,6,7,14,21,42.

Factors of 81 are 1,3,9,27,81.

Factors of 63 are 1,3,7,9,21,63.

Common factors of 42, 81 and 63 are 1 and 3.

HCF of 42, 81 and 63 is 3.