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# Common factor of 126 and 180?

Updated: 9/16/2023

Wiki User

14y ago

The greatest common factor is 18.

An easy way to figure it out is to simplify them as far as you can.

126 = 63*2 = 21*3*2 = 7*3*3*2
180 = 90*2 = 45*2*2 = 15*3*2*2 = 5*3*3*2*2

And see what they have in common ~ 2, 3, 3
Multiply these and you've got you answer. 2*3*3=18

Or, you can go to http://www.mathsisfun.com/greatest-common-factor-tool.html and type in the numbers.

Wiki User

14y ago

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