The GCF is 5.
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The GCF is 5.
Same as the highest common factor between 26 and 13. 13 is the remainder of the division of 65 by 26.
LCM of two numbers = product/HCF; 65 = 5 x 13, 155 = 5 x 31 so HCF is 5 and LCM is 65 x 155/5 = 2015
The greatest common factor (GCF) is: 5
13 is a common factor of 65 and 39.