What is the LCM of 600 and 420?
The LCM of 600 and 420 is 4200.
Steps to find LCM
- Find the prime factorization of 600
600 = 2 × 2 × 2 × 3 × 5 × 5 - Find the prime factorization of 420
420 = 2 × 2 × 3 × 5 × 7 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:
LCM = 2 × 2 × 2 × 3 × 5 × 5 × 7 - LCM = 4200
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: 1200 & 840 300 & 210 1800 & 1260 200 & 140 3000 & 2100 120 & 84 4200 & 2940 1200 & 420 600 & 840 1800 & 420 600 & 1260 3000 & 420 600 & 2100 4200 & 420 600 & 2940
LCM Calculator
Enter two numbers separate by comma. To find least common multiple (LCM) of more than two numbers, click here.