Least Common Multiple (LCM) of 129 and 121
The least common multiple (LCM) of 129 and 121 is 15609.
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 129 and 121?
First, calculate the GCD of 129 and 121 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 129 ÷ 121 = 1 remainder 8 |
| 2 | 121 ÷ 8 = 15 remainder 1 |
| 3 | 8 ÷ 1 = 8 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 159 and 100 | 15900 |
| 149 and 72 | 10728 |
| 167 and 90 | 15030 |
| 76 and 153 | 11628 |
| 100 and 47 | 4700 |