GCD: 1
LCM: 60
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The greatest common factor of the numbers 12 and 42 is 6.
The GCF of 12 and 18 is 6.One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 12 are 1, 2, 3, 4, 6, and 12.The factors of 18 are 1, 2, 3, 6, 9, and 18.The common factors are 1, 2, 3, and 6.Therefore, the greatest common factor is 6.The Greatest Common Factor (GCF) is: 6The GCF is 6.
The GCF is: 12
3
There is no such thing as a Greatest Common Multiple - there are such terms as Lowest Common Multiple, and Greatest Common Factor.