Least Common Multiple (LCM) of 129 and 38
The least common multiple (LCM) of 129 and 38 is 4902.
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 38?
First, calculate the GCD of 129 and 38 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 129 ÷ 38 = 3 remainder 15 |
| 2 | 38 ÷ 15 = 2 remainder 8 |
| 3 | 15 ÷ 8 = 1 remainder 7 |
| 4 | 8 ÷ 7 = 1 remainder 1 |
| 5 | 7 ÷ 1 = 7 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 61 and 89 | 5429 |
| 131 and 173 | 22663 |
| 51 and 50 | 2550 |
| 24 and 24 | 24 |
| 161 and 70 | 1610 |