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The Factors of 65 are 1, 5, 13, and 65. The factor pairs of 65 are 1 x 65, and 5 x 13.
The GCF of 13, 26, and 65 is 13. The prime factorization of 13 is 1*13. The prime factorization of 26 is 2*13 The prime factorization of 65 is 5*13 So the GCF of the set is 13.
The greatest common factor of 52 and 65 is 13
65%13/20 * 100%= 0.65 * 100%= 65%
1 x 65, 5 x 13, 13 x 5, 65 x 1.