Least Common Multiple (LCM) of 186 and 115
The least common multiple (LCM) of 186 and 115 is 21390.
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 186 and 115?
First, calculate the GCD of 186 and 115 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 186 ÷ 115 = 1 remainder 71 |
| 2 | 115 ÷ 71 = 1 remainder 44 |
| 3 | 71 ÷ 44 = 1 remainder 27 |
| 4 | 44 ÷ 27 = 1 remainder 17 |
| 5 | 27 ÷ 17 = 1 remainder 10 |
| 6 | 17 ÷ 10 = 1 remainder 7 |
| 7 | 10 ÷ 7 = 1 remainder 3 |
| 8 | 7 ÷ 3 = 2 remainder 1 |
| 9 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 83 and 168 | 13944 |
| 173 and 51 | 8823 |
| 128 and 71 | 9088 |
| 90 and 140 | 1260 |
| 127 and 82 | 10414 |