What is the LCM of 45 and 55?
The LCM of 45 and 55 is 495.
Steps to find LCM
- Find the prime factorization of 45
45 = 3 × 3 × 5 - Find the prime factorization of 55
55 = 5 × 11 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:
LCM = 3 × 3 × 5 × 11 - LCM = 495
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: 90 & 110 135 & 165 225 & 275 9 & 11 315 & 385 90 & 55 45 & 110 135 & 55 45 & 165 225 & 55 45 & 275 315 & 55 45 & 385
LCM Calculator
Enter two numbers separate by comma. To find least common multiple (LCM) of more than two numbers, click here.