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Determine GCF(13,15)

GCF = Largest factor that divides numbers

Determine the factors for 13

1,13

Determine the factors for 15

1,3,5

List the common factors

1


GCF(13,15) = 1

GCF(13,15) = 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



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