Matt H. answered • 12/05/14
Tutor
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PATIENT :-) Elem/Middle MATH and WRITING; HS SAT and COLLEGE ESSAYS!
Hi Breanna--
GCF (Greatest Common Factor) means, "the biggest number that can go into both 4 and 16."
Think of numbers you can multiply together to get 4:
1 x 4, or 2 x 2.
And for 16?
1 x 16, or 2 x 8, or 4 x 4.
So what's the biggest one that you see on BOTH lists?
It's 4.
It's the Greatest Factor that 4 and 16 have in Common.
Hope this helps, but feel free to post a comment if you need more explanation.
Good luck!
Matt in New York
