Posted by **sarah** on Tuesday, February 19, 2013 at 9:04pm.

what is the greatest common factor 42, 78, and 120?

- math -
**Ms. Sue**, Tuesday, February 19, 2013 at 9:20pm
Factors of 42 = 1, 42, 2, 21, 3, 14, 6, 7

Which of those numbers also go evenly into 78 and 120?

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