Least Common Multiple (LCM) of 125 and 71
The least common multiple (LCM) of 125 and 71 is 8875.
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 125 and 71?
First, calculate the GCD of 125 and 71 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 125 ÷ 71 = 1 remainder 54 |
| 2 | 71 ÷ 54 = 1 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 |
|---|---|
| 45 and 12 | 180 |
| 130 and 105 | 2730 |
| 90 and 108 | 540 |
| 172 and 101 | 17372 |
| 42 and 89 | 3738 |