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Anonymous
The GCF is 3.
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3 is.
The GCF of 9, 12, 15 is 3.
9, 12, and 15 have the gcf of 3. 9: 1,3,9 12: 1,2,3,4,6,12 15: 1,3,5,15
6 = 2 x 3 9 = 3 x 3 15 = 3 x 5 GCF = 3