Q: What is a Factor of 91 but not a factor of 26?

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The GCF of 26, 52, 65, and 91 is: 13

26 1,2,13,26 65 1,5,13,65 91 1,7,13,91 13

26 = 2 x 1391 = 7 x 13So the GCF of 26 and 91 is 13.The GCF is 13.

To find the greatest common factor, or GCF, you must first identify the factors for each number.For 91, its factors are 1, 7, 13, and 91.For 78, its factors are 1, 2, 3, 6, 13, 26, 39, and 78.13 is the highest (or greatest) factor they have in common, so the GCF for 91 and 78 is 13.

The greatest common factor of 26 and 52 Is 26. Since 26 is a factor of 52, it is automatically the GCF of the set.The greatest common factor of 26 and 52 is 26.It is: 26

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7

13

It is: 13

The GCF of 26, 52, 65, and 91 is: 13

The greatest common factor is 13. Both 26 and 91 are divisible by 13. The greatest common factor cannot be larger than the smallest number, so the greatest common factor in this case is the smallest number - 13, since it is a factor of the other two numbers.

The GCF is 13.

The GCF is 13.

13

26 1,2,13,26 65 1,5,13,65 91 1,7,13,91 13

The GCF is 13.

26 = 2 x 1391 = 7 x 13So the GCF of 26 and 91 is 13.The GCF is 13.

No, 10 is not a factor of 91.