Question

Find the HCF of the following by long divosiin method 102,68,136​

Answer 1

For 108 it’s factors are: 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54 and 108.
For 68: 1, 2, 4, 17, 34, and 68
For 136: 1, 2, 4 , 8, 17, 34, 68, and 136.

So my answer I think is: 68

Answer 2

102=2*3*17

68=2*2*17

136=2*2*2*2*17

The common prime factors are 2 and 17

Highest common factor (HCF)=2*17=34

Hope it helps you.