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 |
|---|---|
| 171 and 118 | 20178 |
| 77 and 126 | 1386 |
| 91 and 51 | 4641 |
| 41 and 164 | 164 |
| 179 and 44 | 7876 |