Least Common Multiple (LCM) of 199 and 128
The least common multiple (LCM) of 199 and 128 is 25472.
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 199 and 128?
First, calculate the GCD of 199 and 128 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 199 ÷ 128 = 1 remainder 71 |
| 2 | 128 ÷ 71 = 1 remainder 57 |
| 3 | 71 ÷ 57 = 1 remainder 14 |
| 4 | 57 ÷ 14 = 4 remainder 1 |
| 5 | 14 ÷ 1 = 14 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 36 and 191 | 6876 |
| 128 and 165 | 21120 |
| 118 and 74 | 4366 |
| 129 and 118 | 15222 |
| 142 and 188 | 13348 |