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Q: What is the highest common factor of 13 and 31?

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31.5

The greatest or highest common factor is 1

This is a ridiculous question, due to the fact that 31 is a prime number. Therefore, as 31 is not a factor of 30, the highest common factor can only be 1.

The GCF is 1.

The greatest common factor of 91 and 217 is 7 (and the lowest common multiple is 2,821)The factors of 91 are: 1, 7, 13, 91The factors of 217 are: 1, 7, 31, 217The common factors are: 1, 7The Greatest Common Factor (GCF) is: 7The Greatest Common Factor (GCF) is: 7

HCF(31, 40) = 1. The two numbers are co-prime.

The highest (or greatest) common factor is the highest number that divides exactly into two or more numbers. 33: 1, 3, 11, 33 93: 1, 3, 31, 93 The greatest common factor of 33 and 93 is 3.

The greatest common factor of 66 , 31 = 1

The greatest common factor of 31 and 61 is 1.

The greatest common factor of 31 and 46 is 1.

The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.The greatest common factor of 26 and 31 is 1

The greatest common factor of 93 and 248 is 31

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