If y and m are integers and 450y = m^3, which of the following must be an integer?
I. y/(2^2 * 3 * 5)
II. y/(2 * 3^2 * 5)
III. y/(2 * 3 * 5^2)
A. I
B. II
C. III
D. I, II, and III
E. None
I don't understand how to figure this one out. After knowing the correct answer, I can work my way to the answer, but it still doesn't make sense to me.
I. y/60
II. y/90
III. y/150
Why is the answer A?[/spoiler]
I. y/(2^2 * 3 * 5)
II. y/(2 * 3^2 * 5)
III. y/(2 * 3 * 5^2)
A. I
B. II
C. III
D. I, II, and III
E. None
I don't understand how to figure this one out. After knowing the correct answer, I can work my way to the answer, but it still doesn't make sense to me.
I. y/60
II. y/90
III. y/150
Why is the answer A?[/spoiler]
