Least Common Multiple (LCM) of 70 and 129
The least common multiple (LCM) of 70 and 129 is 9030.
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 70 and 129?
First, calculate the GCD of 70 and 129 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 70 ÷ 129 = 0 remainder 70 |
| 2 | 129 ÷ 70 = 1 remainder 59 |
| 3 | 70 ÷ 59 = 1 remainder 11 |
| 4 | 59 ÷ 11 = 5 remainder 4 |
| 5 | 11 ÷ 4 = 2 remainder 3 |
| 6 | 4 ÷ 3 = 1 remainder 1 |
| 7 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 78 and 10 | 390 |
| 131 and 31 | 4061 |
| 177 and 99 | 5841 |
| 30 and 30 | 30 |
| 61 and 149 | 9089 |