Least Common Multiple (LCM) of 198 and 45
The least common multiple (LCM) of 198 and 45 is 990.
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 45?
First, calculate the GCD of 198 and 45 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 198 ÷ 45 = 4 remainder 18 |
| 2 | 45 ÷ 18 = 2 remainder 9 |
| 3 | 18 ÷ 9 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 51 and 109 | 5559 |
| 195 and 170 | 6630 |
| 28 and 110 | 1540 |
| 197 and 83 | 16351 |
| 33 and 120 | 1320 |