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Since 12 is a factor of 144 and 12 is the largest factor of itself, the greatest common factor of 12 and 144 is 12.
144 is a multiple of 36 36 is a factor of 144
The GCF of 72 and 144 is 72. Since 72 is a factor of 144, it is automatically the GCF.
The greatest common factor of 132 and 144 is 12.
2 is the highest common factor of 144, 432 and 638.