Enter GCF or LCM numbers:
Determine GCF(10,12)
GCF = Largest factor that divides numbers
Determine the factors for 10
1,2,5,10
Determine the factors for 12
1,2,3,4,6
List the common factors
1,2
GCF(10,12) = 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
Calculate LCM for the following
(10,12)
List the first few multiples for 10
10,20,30,40,50,60,70,80,90
List the first few multiples for 12
12,24,36,48,60,72,84,96
LCM is the smallest common number:
LCM(10,12) is 60
