Least Common Multiple (LCM) of 124 and 155
The least common multiple (LCM) of 124 and 155 is 620.
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 124 and 155?
First, calculate the GCD of 124 and 155 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 124 ÷ 155 = 0 remainder 124 |
| 2 | 155 ÷ 124 = 1 remainder 31 |
| 3 | 124 ÷ 31 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 15 and 45 | 45 |
| 130 and 86 | 5590 |
| 120 and 173 | 20760 |
| 56 and 71 | 3976 |
| 71 and 199 | 14129 |