28 multiples are 7,4,1,2,14,28,
63 multiples are 1.63.3.3.7
greatest is 7
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The Greatest Common Factor of 28, 42, 63: 7
This cannot be determined because the common multiples of any two or more numbers are infinite.
This cannot be answered because the common multiples of any two or more numbers are infinite.
The greatest common factor is 63
The common multiples of 3 and 7 are 21, 42, 63 and so on.