Least Common Multiple (LCM) of 198 and 138
The least common multiple (LCM) of 198 and 138 is 4554.
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 198 and 138?
First, calculate the GCD of 198 and 138 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 198 ÷ 138 = 1 remainder 60 |
| 2 | 138 ÷ 60 = 2 remainder 18 |
| 3 | 60 ÷ 18 = 3 remainder 6 |
| 4 | 18 ÷ 6 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 176 and 103 | 18128 |
| 11 and 66 | 66 |
| 142 and 67 | 9514 |
| 128 and 73 | 9344 |
| 86 and 172 | 172 |