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AMC 12/AHSME
1990 AMC 12/AHSME
11
11
Part of
1990 AMC 12/AHSME
Problems
(1)
Number of such integers
Source:
3/31/2006
How man y positive integers less than
50
50
50
have an odd number of positive integer divisors?
(A)
3
(B)
5
(C)
7
(D)
9
(E)
11
\text{(A)}\ 3 \qquad \text{(B)}\ 5 \qquad \text{(C)}\ 7 \qquad \text{(D)}\ 9 \qquad \text{(E)}\ 11
(A)
3
(B)
5
(C)
7
(D)
9
(E)
11