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# How do you do greatest common factor step -by-step?

Updated: 10/18/2022

Wiki User

12y ago

Example: 30 and 42

Factor them.

2 x 3 x 5 = 30

2 x 3 x 7 = 42

Select the common factors.

2 x 3 = 6, the GCF

Wiki User

12y ago

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Q: How do you do greatest common factor step -by-step?
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