Least Common Multiple (LCM) of 124 and 63
The least common multiple (LCM) of 124 and 63 is 7812.
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 63?
First, calculate the GCD of 124 and 63 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 124 ÷ 63 = 1 remainder 61 |
| 2 | 63 ÷ 61 = 1 remainder 2 |
| 3 | 61 ÷ 2 = 30 remainder 1 |
| 4 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 138 and 138 | 138 |
| 142 and 142 | 142 |
| 65 and 33 | 2145 |
| 30 and 181 | 5430 |
| 84 and 30 | 420 |