Enter GCF or LCM numbers:
Determine GCF(80,200)
GCF = Largest factor that divides numbers
Determine the factors for 80
1,2,4,5,8,10,16,20,40,80
Determine the factors for 200
1,2,4,5,8,10,20,25,40,50
List the common factors
1,2,4,5,8,10,20,40
GCF(80,200) = 40
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
