Least Common Multiple (LCM) of 124 and 85
The least common multiple (LCM) of 124 and 85 is 10540.
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 85?
First, calculate the GCD of 124 and 85 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 124 ÷ 85 = 1 remainder 39 |
| 2 | 85 ÷ 39 = 2 remainder 7 |
| 3 | 39 ÷ 7 = 5 remainder 4 |
| 4 | 7 ÷ 4 = 1 remainder 3 |
| 5 | 4 ÷ 3 = 1 remainder 1 |
| 6 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 25 and 100 | 100 |
| 45 and 19 | 855 |
| 120 and 13 | 1560 |
| 99 and 24 | 792 |
| 33 and 90 | 990 |