Least Common Multiple (LCM) of 124 and 105
The least common multiple (LCM) of 124 and 105 is 13020.
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 105?
First, calculate the GCD of 124 and 105 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 124 ÷ 105 = 1 remainder 19 |
| 2 | 105 ÷ 19 = 5 remainder 10 |
| 3 | 19 ÷ 10 = 1 remainder 9 |
| 4 | 10 ÷ 9 = 1 remainder 1 |
| 5 | 9 ÷ 1 = 9 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 142 and 185 | 26270 |
| 128 and 90 | 5760 |
| 18 and 189 | 378 |
| 50 and 41 | 2050 |
| 46 and 78 | 1794 |