Enter GCF or LCM numbers:
Determine GCF(216,9)
GCF = Largest factor that divides numbers
Determine the factors for 216
1,2,3,4,6,8,9
Determine the factors for 9
1,3,9
List the common factors
1,3,9
GCF(216,9) = 9
GCF(216,9) = 9
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
