Least Common Multiple (LCM) of 198 and 81
The least common multiple (LCM) of 198 and 81 is 1782.
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 81?
First, calculate the GCD of 198 and 81 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 198 ÷ 81 = 2 remainder 36 |
| 2 | 81 ÷ 36 = 2 remainder 9 |
| 3 | 36 ÷ 9 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 70 and 198 | 6930 |
| 129 and 185 | 23865 |
| 182 and 181 | 32942 |
| 32 and 11 | 352 |
| 37 and 16 | 592 |