14 and 21, and 21 and 28 are the number pairs between 15 and 30 that have 7 as their greatest common factor.
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The LCM of 7 and 15 is 105. The GCF of 7 and 15 is 1.
30 (30 x 7, 30 x 15)
The factors of 105 are: 1, 3, 5, 7, 15, 21, 35, 105.The factors of 330 are: 1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330.The common factors are: 1, 3, 5, 15.The Greatest Common Factor (GCF) is: 15
The factors of 30 are:1, 2, 3, 5, 6, 10, 15, 30The factors of 105 are:1, 3, 5, 7, 15, 21, 35, 105The common factors are:1, 3, 5, 15The Greatest Common Factor (GCF) is:15
the answer is 5 because it has to be less then 15 and 5 is theonly number that goes into 15 other then 3 which is to low