The GCF is 5.
The LCM is 60.
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It is infinity but the LCM is 30
The GCF of 12 and 15 is 3, and the LCM is 60.
45 and any factor of 45 15 and 9 9 and 5
The LCM or least common multiple of 3 and 5 is 15.The GCF or greatest common factor of 3 and 5 is 1.
The greatest common factor of 15 and 105 is 15.