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The greatest common factor of 13 and 16 is 1. Notice that 13 is a Prime number, thus it is only divisible by 1 and itself, which is 13. While 16 cannot be divisible by 13, there exists only one common factor, and that is 1.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoSince 11 and 16 are relatively prime - that is, there is no common factor other than one between the two numbers, 1 is the greatest common factor (divisor) of 11 and 16. This can be verified by prime factoring each number.
11 = 11 x 1
16 = 2 x 2 x 2 x 2 x 1
Wiki User
∙ 10y agoThe GCF is 4.
Wiki User
∙ 8y agoThe GCF is 1.
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