Least Common Multiple (LCM) of 120 and 54
The least common multiple (LCM) of 120 and 54 is 1080.
What is the Least Common Multiple (LCM)?
The LCM of two integers is the smallest positive integer that is divisible by both numbers. It is often used to find common denominators and solve problems involving periodic events.
Formula for LCM
The LCM of two numbers can be calculated using their GCD:
LCM(a, b) = |a × b| ÷ GCD(a, b)
How to Calculate the LCM of 120 and 54?
First, calculate the GCD of 120 and 54 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 120 ÷ 54 = 2 remainder 12 |
| 2 | 54 ÷ 12 = 4 remainder 6 |
| 3 | 12 ÷ 6 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 136 and 168 | 2856 |
| 187 and 181 | 33847 |
| 157 and 131 | 20567 |
| 18 and 133 | 2394 |
| 115 and 178 | 20470 |