Least Common Multiple (LCM) of 115 and 185
The least common multiple (LCM) of 115 and 185 is 4255.
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 115 and 185?
First, calculate the GCD of 115 and 185 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 115 ÷ 185 = 0 remainder 115 |
| 2 | 185 ÷ 115 = 1 remainder 70 |
| 3 | 115 ÷ 70 = 1 remainder 45 |
| 4 | 70 ÷ 45 = 1 remainder 25 |
| 5 | 45 ÷ 25 = 1 remainder 20 |
| 6 | 25 ÷ 20 = 1 remainder 5 |
| 7 | 20 ÷ 5 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 84 and 102 | 1428 |
| 49 and 117 | 5733 |
| 172 and 97 | 16684 |
| 83 and 149 | 12367 |
| 156 and 197 | 30732 |