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First find all the factors for each
32:
1, 2, 4, 8, 16, 32
48:
1, 2, 3, 4, 6, 8, 12, 16, 24, 32
Now note all the common factors
1, 2, 4, 8, 16
The greatest common factor is 16
The GCF is 16.
The GCF is 4.
The GCF is 8.
It is: 2
16
The GCF is 12.
The GCF is: 12.
The GCF of 42, 30, 60 and 48 is 6.
The GCF is 2.
12 is the GCF of 48 and 60.
The GCF of 54, 48, and 60 is 6.