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i am thinking of a number between 20 and 50. it is an even number. it has exactly 9 factors. what is the number?
15 years ago

Answers

MathMate
If it has exactly 9 factors, it must be a perfect square, as only perfect squares have an odd number of factors (including 1 and the number itself).

Between 20 and 50, there are 3 perfect squares, only one of which has more than three factors.

Post if further help is required.
15 years ago
sahar
tell me
8 years ago
jojo siwa

is it 34
8 years ago

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