Least Common Multiple (LCM) of 138 and 118
The least common multiple (LCM) of 138 and 118 is 8142.
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 138 and 118?
First, calculate the GCD of 138 and 118 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 138 ÷ 118 = 1 remainder 20 |
| 2 | 118 ÷ 20 = 5 remainder 18 |
| 3 | 20 ÷ 18 = 1 remainder 2 |
| 4 | 18 ÷ 2 = 9 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 165 and 81 | 4455 |
| 162 and 118 | 9558 |
| 124 and 175 | 21700 |
| 44 and 81 | 3564 |
| 170 and 161 | 27370 |