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Anonymous
63 = 3x3x7
84 = 2x2x3x7
126 = 2x3x3x7
GCF = 2x2x3x3x7
= 252
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2 x 3 x 3 x 3 = 54
2 x 2 x 3 x 7 = 84
2 x 3 = 6, the GCF
2 x 2 x 2 x 3 x 3 = 72
2 x 2 x 3 = 12, the GCF
The GCF of 84, 63 and 42 is 21.
The GCF is 21.
GCF(84, 63, 42)= 7
It is: 21
The greatest common factor of the numbers 30, 84 and 126 is 6.
The GCF is 1.
The GCF is 3.