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How many 2- digit numbers have exactly 3 factors?

How many 2- digit numbers have exactly 3 factors?
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How many 2- digit numbers have exactly 3 factors?

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User Gomisha
by
8.3k points

2 Answers

5 votes

Answer:

25 and 49 are the only two-digit numbers which have exactly three factors.

Explanation:

answered
User Matt DiTrolio
by
8.2k points
4 votes
11,13,17,19,23,29,31
answered
User Wienczny
by
8.6k points
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