What is the LCM of 1728 and 90?
The LCM of 1728 and 90 is 8640.
Steps to find LCM
- Find the prime factorization of 1728
1728 = 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 - Find the prime factorization of 90
90 = 2 × 3 × 3 × 5 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:
LCM = 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 - LCM = 8640
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: 3456 & 180 864 & 45 5184 & 270 576 & 30 8640 & 450 3456 & 90 1728 & 180 5184 & 90 1728 & 270 8640 & 90 1728 & 450 1728 & 630
LCM Calculator
Enter two numbers separate by comma. To find least common multiple (LCM) of more than two numbers, click here.