Least Common Multiple (LCM) of 80 and 198
The least common multiple (LCM) of 80 and 198 is 7920.
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 80 and 198?
First, calculate the GCD of 80 and 198 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 80 ÷ 198 = 0 remainder 80 |
| 2 | 198 ÷ 80 = 2 remainder 38 |
| 3 | 80 ÷ 38 = 2 remainder 4 |
| 4 | 38 ÷ 4 = 9 remainder 2 |
| 5 | 4 ÷ 2 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 130 and 157 | 20410 |
| 64 and 156 | 2496 |
| 116 and 75 | 8700 |
| 191 and 98 | 18718 |
| 42 and 27 | 378 |