l GCF of 10 and 4

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Determine GCF(10,4)

GCF = Largest factor that divides numbers

Determine the factors for 10

1,2

Determine the factors for 4

1,2,4

List the common factors

1,2


GCF(10,4) = 2

Evaluate GCF

Since GCF ≠ 1, they are not relatively prime (co-prime)

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

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