l GCF of 13 and 16

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Determine GCF(13,16)

GCF = Largest factor that divides numbers

Determine the factors for 13

1,13

Determine the factors for 16

1,2,4,8

List the common factors

1


GCF(13,16) = 1

Evaluate GCF

Since GCF = 1, they are relatively prime (co-prime)

Since GCF ≠ 1 and have a difference of two, the numbers are not twin prime