What is the LCM of 13 and 20?
The LCM of 13 and 20 is 260.
Steps to find LCM
- Find the prime factorization of 13
13 = 13 - Find the prime factorization of 20
20 = 2 × 2 × 5 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:
LCM = 2 × 2 × 5 × 13 - LCM = 260
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: 26 & 40 39 & 60 65 & 100 91 & 140 26 & 20 13 & 40 39 & 20 13 & 60 65 & 20 13 & 100 91 & 20 13 & 140
LCM Calculator
Enter two numbers separate by comma. To find least common multiple (LCM) of more than two numbers, click here.