Least Common Multiple (LCM) of 125 and 20
The least common multiple (LCM) of 125 and 20 is 500.
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 20?
First, calculate the GCD of 125 and 20 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 125 ÷ 20 = 6 remainder 5 |
| 2 | 20 ÷ 5 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 178 and 90 | 8010 |
| 194 and 186 | 18042 |
| 112 and 39 | 4368 |
| 91 and 62 | 5642 |
| 51 and 89 | 4539 |