Least Common Multiple (LCM) of 61 and 198
The least common multiple (LCM) of 61 and 198 is 12078.
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 61 and 198?
First, calculate the GCD of 61 and 198 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 61 ÷ 198 = 0 remainder 61 |
| 2 | 198 ÷ 61 = 3 remainder 15 |
| 3 | 61 ÷ 15 = 4 remainder 1 |
| 4 | 15 ÷ 1 = 15 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 17 and 160 | 2720 |
| 173 and 185 | 32005 |
| 46 and 132 | 3036 |
| 20 and 57 | 1140 |
| 66 and 83 | 5478 |