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Anonymous
The GCF of 15 and 27 is 3.
The GCF of 15, 20 and 25 is 5.
The GCF of 15, 27, 15, 20 and 25 is 1.
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The GCF is 3.
The GCF is 27.
21, 23, 25, 27, 29
the GCF of 27 and 63 is 9