The factors of 72 are:
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
The factors of 144 are:
1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144
The common factors are:
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
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The GCF of 72 and 144 is 72. Since 72 is a factor of 144, it is automatically the GCF.
GCF (72, 144, 180) = 36
The GCF of 72, 120, and 144 is 24.
The GCF is 12.
By GCF you mean Greatest Common Divisor = 72