The lowest common factor of any set of positive integers is 1.
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The GCF is 12.
The lowest common multiple of 24 and 72 is 72.
The GCF is 12.
The greatest common factor of 60 and 72 is 12.The greatest common factor (GCF) is the largest positive integer that divides both numbers without a remainder. One technique to find the GCF is to compare the prime factorizations of the two numbers.60 = 2*2*3*5 = 2^2*3*572 = 2*2*3*6 = 2^2*3*6One can easily see that 60 and 72 share a multiplier of (2^2*3) = 12. Thus, the GCF of 60 and 72 is 12.The GCF is 12.
The GCF of 72 and 144 is 72. Since 72 is a factor of 144, it is automatically the GCF.