1974 AHSME Problems/Problem 26
Problem
The number of distinct positive integral divisors of excluding
and
is
Solution
The prime factorization of is
, so the prime factorization of
is
. Therefore, the number of positive divisors of
is
. However, we have to subtract
to account for
and
, so our final answer is
.
See Also
1974 AHSME (Problems • Answer Key • Resources) | ||
Preceded by Problem 25 |
Followed by Problem 27 | |
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