The greatest common factor of 40 and 63 is 1.
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Greatest Common Factor= 1
225 = 3252 63 = 327 so the greatest common factor is 9
The GCF is 7.
You can divide both 63 and 99 by 3.If you you divide 99 by 3 it will be 33.If you divide 63 by 3 it will be 23.
the GCF of 27 and 63 is 9