Least Common Multiple (LCM) of 61 and 189
The least common multiple (LCM) of 61 and 189 is 11529.
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 189?
First, calculate the GCD of 61 and 189 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 61 ÷ 189 = 0 remainder 61 |
| 2 | 189 ÷ 61 = 3 remainder 6 |
| 3 | 61 ÷ 6 = 10 remainder 1 |
| 4 | 6 ÷ 1 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 199 and 66 | 13134 |
| 87 and 122 | 10614 |
| 113 and 165 | 18645 |
| 63 and 66 | 1386 |
| 43 and 80 | 3440 |