Question

M = 3^4 x 5^3

n = 3^3 x 5^2 x 11

Find the Highest Common Factor (HCF) of 5m and 3n.

Answer 1

Hcf = 3^4 and 5^2

Therefore your answer is
3^4 . 5^2

Answer 2

`m=3^4\cdot5^3\\n=3^3\cdot5^2\cdot11`

So

`5m=3^4\cdot5^4\\3n=3^4\cdot5^2\cdot11`

Therefore

`\text{hcf}(5m,3n)=3^4\cdot5^2`