Least Common Multiple (LCM) of 191 and 91
The least common multiple (LCM) of 191 and 91 is 17381.
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 191 and 91?
First, calculate the GCD of 191 and 91 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 191 ÷ 91 = 2 remainder 9 |
| 2 | 91 ÷ 9 = 10 remainder 1 |
| 3 | 9 ÷ 1 = 9 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 128 and 158 | 10112 |
| 25 and 78 | 1950 |
| 146 and 75 | 10950 |
| 92 and 136 | 3128 |
| 126 and 57 | 2394 |