Least Common Multiple (LCM) of 115 and 191
The least common multiple (LCM) of 115 and 191 is 21965.
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 191?
First, calculate the GCD of 115 and 191 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 115 ÷ 191 = 0 remainder 115 |
| 2 | 191 ÷ 115 = 1 remainder 76 |
| 3 | 115 ÷ 76 = 1 remainder 39 |
| 4 | 76 ÷ 39 = 1 remainder 37 |
| 5 | 39 ÷ 37 = 1 remainder 2 |
| 6 | 37 ÷ 2 = 18 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 48 and 172 | 2064 |
| 109 and 150 | 16350 |
| 108 and 48 | 432 |
| 113 and 13 | 1469 |
| 128 and 113 | 14464 |