Least Common Multiple (LCM) of 54 and 125
The least common multiple (LCM) of 54 and 125 is 6750.
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 54 and 125?
First, calculate the GCD of 54 and 125 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 54 ÷ 125 = 0 remainder 54 |
| 2 | 125 ÷ 54 = 2 remainder 17 |
| 3 | 54 ÷ 17 = 3 remainder 3 |
| 4 | 17 ÷ 3 = 5 remainder 2 |
| 5 | 3 ÷ 2 = 1 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 111 and 63 | 2331 |
| 130 and 80 | 1040 |
| 81 and 47 | 3807 |
| 197 and 151 | 29747 |
| 87 and 171 | 4959 |