Answers

The LCM of 9 and 12 is 36.

Steps to find LCM

1. Find the prime factorization of 9
   9 = 3 × 3
2. Find the prime factorization of 12
   12 = 2 × 2 × 3
3. Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:
   
   LCM = 2 × 2 × 3 × 3
4. LCM = 36

MathStep (Works offline)

Download our mobile app and learn how to find LCM of upto four numbers in your own time:
Android and iPhone/ iPad

Find least common multiple (LCM) of: 18 & 24 27 & 36 3 & 4 45 & 60 63 & 84 18 & 12 9 & 24 27 & 12 9 & 36 45 & 12 9 & 60 63 & 12 9 & 84

LCM Calculator

Enter two numbers separate by comma. To find least common multiple (LCM) of more than two numbers, click here.