Least Common Multiple (LCM) of 61 and 126
The least common multiple (LCM) of 61 and 126 is 7686.
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 126?
First, calculate the GCD of 61 and 126 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 61 ÷ 126 = 0 remainder 61 |
| 2 | 126 ÷ 61 = 2 remainder 4 |
| 3 | 61 ÷ 4 = 15 remainder 1 |
| 4 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 147 and 151 | 22197 |
| 38 and 72 | 1368 |
| 142 and 99 | 14058 |
| 122 and 29 | 3538 |
| 140 and 133 | 2660 |