GCF & LCM Practice
Find LCM
list multiples of each number--find the first multiple that is in both lists
Factor
one of 2 numbers that multiplied together gives a product
Multiple
the product of 2 numbers
Find GCF
Create T-charts, list ALL factors of both numbers, find the largest COMMON factor
4
GCF of 12 and 20
1
GCF of 2 and 7
10
GCF of 50 and 40
2
GCF of 6 and 10
6
GCF of 6 and 12
3
GCF of 9 and 6
GCF
Greatest Common Factor
60
LCM 12 and 20
24
LCM of 12 and 24
14
LCM of 2 and 7
20
LCM of 5 and 4
30
LCM of 6 and 10
12
LCM of 6 and 12
56
LCM of 8 and 7
LCM
Least Common Multiple
Greatest Common Factor
The largest numbers that is a factor for both the numbers being compared
Least Common Multiple
The smallest number that is a product of both numbers being compared