Question

2 is HCF of
a)64,18
b)19,47
c)23,15
d)35,49
pls answer fast

Answer 1

2 is the HCF of 64,18. Hope this helps.

Answer 2

2 is HCF of 64 and 18.

This is because all other numbers given in the options are odd numbers and hence not divisible by 2. 64 and 18 are the only numbers divisible by 2. Hence 2 is the HCF of 64 and 18.

And the other way is Find HCF by factorization method

64 = 2 x 2 x 2 x 2 x 2 x 2
18 = 2 x 3 x 3

2 is a common factor in 64 and 18. Hence it is a HCF of 64 and 18.