Question

a) Write down the smallest positive integer, k, such that 180k is a perfect square.
180

b) Write down the smallest positive integer, k, such that
k is a perfect square.

plz help w both questions

Answer 1

Prime factorization
180 = 2^2*3^3*5*k
Smallest perfect square when k =5
:::::
k=1 is the smallest perfect square