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Determine GCF(11,13)

GCF = Largest factor that divides numbers

Determine the factors for 11

1,11

Determine the factors for 13

1

List the common factors

1


GCF(11,13) = 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