If x = 23 x 3 x 52, y = 22 x 32, then HCF (x, y) is :
36
18
6
12
If a=23×32×5 and b=24×3×72, then which of the following is true?
If the prime factorisation of a and b are
a=22×3×x
b=2×32×y and
LCM of (a, b) =22×32×52 and
HCF of (a, b) = 2×3×5, which of the following is true? (x≠1, y≠1)