Least Common Multiple (LCM) of 61 and 124
The least common multiple (LCM) of 61 and 124 is 7564.
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 61 and 124?
First, calculate the GCD of 61 and 124 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 61 ÷ 124 = 0 remainder 61 |
| 2 | 124 ÷ 61 = 2 remainder 2 |
| 3 | 61 ÷ 2 = 30 remainder 1 |
| 4 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 20 and 178 | 1780 |
| 154 and 84 | 924 |
| 200 and 164 | 8200 |
| 99 and 91 | 9009 |
| 135 and 35 | 945 |