Least Common Multiple (LCM) of 198 and 120
The least common multiple (LCM) of 198 and 120 is 3960.
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 120?
First, calculate the GCD of 198 and 120 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 198 ÷ 120 = 1 remainder 78 |
| 2 | 120 ÷ 78 = 1 remainder 42 |
| 3 | 78 ÷ 42 = 1 remainder 36 |
| 4 | 42 ÷ 36 = 1 remainder 6 |
| 5 | 36 ÷ 6 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 97 and 160 | 15520 |
| 102 and 199 | 20298 |
| 15 and 28 | 420 |
| 170 and 57 | 9690 |
| 185 and 37 | 185 |