2006 Cyprus MO/Lyceum/Problem 24
Problem
The number of divisors of the number is
A.
B.
C.
D.
E.
Solution
. A divisor of is therefore in the form , where , , and . There are 2 choices for , 2 choices for , and two choices for , therefore there are divisors of .
See also
2006 Cyprus MO, Lyceum (Problems) | ||
Preceded by Problem 23 |
Followed by Problem 25 | |
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