Least Common Multiple (LCM) of 138 and 188
The least common multiple (LCM) of 138 and 188 is 12972.
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 188?
First, calculate the GCD of 138 and 188 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 138 ÷ 188 = 0 remainder 138 |
| 2 | 188 ÷ 138 = 1 remainder 50 |
| 3 | 138 ÷ 50 = 2 remainder 38 |
| 4 | 50 ÷ 38 = 1 remainder 12 |
| 5 | 38 ÷ 12 = 3 remainder 2 |
| 6 | 12 ÷ 2 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 142 and 43 | 6106 |
| 135 and 10 | 270 |
| 178 and 162 | 14418 |
| 24 and 82 | 984 |
| 190 and 115 | 4370 |