Respuesta :

cdw2014
Factor both numbers by finding every number that can be divided evenly out of the number.

The factors for 9 are: 1, 3, 9

The factors for 12 are: 1, 2, 3, 4, 6, 12

The largest factor the two numbers have in common is 3.
zanzoon
The greatest common factor of both 9 and 12 is 3, because 3•3 is 9 and 3•4 is 12.

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