Paola's age is a number that has exactly 5 positive divisors. Paola's age must be
A.
a prime squared
B.
a non-prime squared
C.
an odd number
D.
an even number
Exam No：2020 First Round Grade 7 Year：2020 Question No：11
Answer:
B
Knowledge points:
G7 - Number Theory - Counting Divisors
Solution:
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