What is the LCM of 4 and 8?
The LCM of 4 and 8 is 8.
Steps to find LCM
- Find the prime factorization of 4
4 = 2 × 2 - Find the prime factorization of 8
8 = 2 × 2 × 2 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:
LCM = 2 × 2 × 2 - LCM = 8
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: 8 & 16 2 & 4 12 & 24 20 & 40 28 & 56 8 & 8 4 & 16 12 & 8 4 & 24 20 & 8 4 & 40 28 & 8 4 & 56
LCM Calculator
Enter two numbers separate by comma. To find least common multiple (LCM) of more than two numbers, click here.