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It is: 20
3 and 36 9 and 12
The GFC= 2 :)LOL
Prime factorization of: 12=2 x 2 x 3 9 = ..........3 x 3 ============ GCF= .......3 Answer: 3
2 x 2 x 3 = 12 3 x 5 = 15 The GCF is 3.