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Determine GCF(20,96)
GCF = Largest factor that divides numbers
1,2,4,5,10,20
1,2,3,4,6,8,12,16
1,2,4
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