If n is a multiple of 5 and n = p^2q, where p and q are prime numbers, which of the following must be a multiple of 25?
a) p^2
b)q^2
c) pq
d) p^2q^2
e)p^3q
OA d
[spoiler] I chose n = 50, p=5, q=2. then i just went and plugged in numbers and chose e since it worked. My question is how do you know what values of p and q to choose since there are many possibilities here.[/spoiler]
a) p^2
b)q^2
c) pq
d) p^2q^2
e)p^3q
OA d
[spoiler] I chose n = 50, p=5, q=2. then i just went and plugged in numbers and chose e since it worked. My question is how do you know what values of p and q to choose since there are many possibilities here.[/spoiler]
