Same as the highest common factor between 26 and 13. 13 is the remainder of the division of 65 by 26.
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Factors of 26: 1, 2, 13, 26Factors of 65: 1, 5, 13, 65GCF (26, 65) = 13
No. They have a common factor, 13. 26 = 13 x 2 65 = 13 x 5 Numbers are relatively prime if they have no common factors other than 1, i.e. that they have no prime number factors in common.
The factors of 24 are: 1, 2, 3, 4, 6, 8, 12, 24 The factors of 26 are: 1, 2, 13, 26 The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40 The factors of 65 are: 1, 5, 13, 65
The factors of 39 are: 1, 3, 13, 39The factors of 130 are: 1, 2, 5, 10, 13, 26, 65, 130The common factors are: 1, 13The Greatest Common Factor (GCF) is: 13
13