Least Common Multiple (LCM) of 168 and 128
The least common multiple (LCM) of 168 and 128 is 2688.
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 168 and 128?
First, calculate the GCD of 168 and 128 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 168 ÷ 128 = 1 remainder 40 |
| 2 | 128 ÷ 40 = 3 remainder 8 |
| 3 | 40 ÷ 8 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 25 and 85 | 425 |
| 189 and 101 | 19089 |
| 36 and 187 | 6732 |
| 169 and 71 | 11999 |
| 138 and 43 | 5934 |