45 is the greatest common factor of 90 and 135
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45, 90 and 135
The GCF is 15.
The GCF is 45.
15
90 goes into 135 one time with a remainder of 45. This can be calculated by dividing 135 by 90, which equals 1 with a remainder of 45. In other words, 90 multiplied by 1 equals 90, and when subtracted from 135, leaves a remainder of 45.