Least Common Multiple (LCM) of 91 and 199
The least common multiple (LCM) of 91 and 199 is 18109.
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 91 and 199?
First, calculate the GCD of 91 and 199 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 91 ÷ 199 = 0 remainder 91 |
| 2 | 199 ÷ 91 = 2 remainder 17 |
| 3 | 91 ÷ 17 = 5 remainder 6 |
| 4 | 17 ÷ 6 = 2 remainder 5 |
| 5 | 6 ÷ 5 = 1 remainder 1 |
| 6 | 5 ÷ 1 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 21 and 57 | 399 |
| 91 and 89 | 8099 |
| 87 and 176 | 15312 |
| 49 and 55 | 2695 |
| 189 and 16 | 3024 |