+0

# What is the LCM of 18 and 12

0
583
1

What is the LCM of 18 and 12

Guest Mar 10, 2015

### Best Answer

#1
+17711
+5

18  =  2 · 3 · 3

12  =  2 · 2 · 3

The lowest common multiple must have each factor the maximum number of times found in the problem.

18 requires at least 1 '2' and at least 2 '3's

12 requires at least 2 '2'x and at least 1 '3'

Taking the maximum number of each, the LCM needs 2 '2's and 2 '3's   --->   2 x 2 x 3 x 3  =  36.

geno3141  Mar 10, 2015
Sort:

### 1+0 Answers

#1
+17711
+5
Best Answer

18  =  2 · 3 · 3

12  =  2 · 2 · 3

The lowest common multiple must have each factor the maximum number of times found in the problem.

18 requires at least 1 '2' and at least 2 '3's

12 requires at least 2 '2'x and at least 1 '3'

Taking the maximum number of each, the LCM needs 2 '2's and 2 '3's   --->   2 x 2 x 3 x 3  =  36.

geno3141  Mar 10, 2015

### 5 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details