What are the greatest common divisors and least common multi

What are the greatest common divisors and least common multiple of the pair of integers?

2^7 ×7^2 , 3^3 × 11 × 19

Solution

Let a =2⁷.7² and b =3³.11.19

Clearly a, b have no common divisiors other than 1

gcd(a, b) =1 ______________ grestes common divisors

lcm(a,b) = 2⁷.7².3³.11.19 ------------------------- least common multiple