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Which number is a factor of 15 but not a multiple of 3

User AurelienC
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2 Answers

3 votes
Also it could be 1 and 15 because 1x15=15 like 3x5
User BassKozz
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3 votes
is 5 because the factor of 15 can not be other number except 5


User MikeOnline
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