Least Common Multiple (LCM) of 18 and 198
The least common multiple (LCM) of 18 and 198 is 198.
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 18 and 198?
First, calculate the GCD of 18 and 198 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 18 ÷ 198 = 0 remainder 18 |
| 2 | 198 ÷ 18 = 11 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 155 and 65 | 2015 |
| 15 and 184 | 2760 |
| 175 and 90 | 3150 |
| 121 and 161 | 19481 |
| 182 and 161 | 4186 |