If x = 23 x 3 x 52, y = 22 x 32, then HCF (x, y) is :
If a=23×32×5 and b=24×3×72, then which of the following is true?
HCF of (23×32×5),(22×33×52) and (24×3×53×7) is
(a) 30 (b) 48 (c) 60 (d)105