Question

If two positive integers a and b are written as a = x 5y 2 and b = x 2y 3 ; x,y are prime numbers, then find hcf lcm of a and
b.

Answer 1

HCF of a and b is 1 and LCM of a and b is ab

Answer 2

Answer

x5y2 = x * x * x * x * x*y * y

x2y3 = x * x * y * y * y

HCF = x2y2