Since 70 is a factor of 700, it is automatically the GCF.
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The greatest common factor of 21 and 70 is 71000000The GCF is 7.The GCF is: 1The GCF is 7.
The GCF of 73 and 70 is 7.63: 1,3,7,9,21,6370: 1,2,5,7,10,14,35,70and so the GCF is 7.
The greatest common factor of 70 147 175 and 280 is 7.
7
The GCF is 7.