Least Common Multiple (LCM) of 121 and 126
The least common multiple (LCM) of 121 and 126 is 15246.
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 121 and 126?
First, calculate the GCD of 121 and 126 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 121 ÷ 126 = 0 remainder 121 |
| 2 | 126 ÷ 121 = 1 remainder 5 |
| 3 | 121 ÷ 5 = 24 remainder 1 |
| 4 | 5 ÷ 1 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 69 and 51 | 1173 |
| 49 and 109 | 5341 |
| 174 and 64 | 5568 |
| 55 and 66 | 330 |
| 159 and 124 | 19716 |