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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 least common multiple of 12 , 5 = 60
The least common multiple of 5 , 4 = 20
The least common multiple of 104 , 5 = 520
The least common multiple of 13 and 5 is 65.