30 = 2 x 3 x 5
50 = 2 x 5 x 5
100 = 2 x 2 x 5 x 5
GCF = 2 x 5 = 10
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What is the greatest common factor shared by 100 and 30?
10
The greatest common factor (GCF) of 20 and 30 is 10.
30 is a factor of 150 so 30 is the greatest common factor of 30 and 150
The greatest common factor of 7 and 30 is 1.