Least Common Multiple (LCM) of 18 and 128
The least common multiple (LCM) of 18 and 128 is 1152.
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 18 and 128?
First, calculate the GCD of 18 and 128 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 18 ÷ 128 = 0 remainder 18 |
| 2 | 128 ÷ 18 = 7 remainder 2 |
| 3 | 18 ÷ 2 = 9 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 199 and 167 | 33233 |
| 95 and 14 | 1330 |
| 180 and 137 | 24660 |
| 143 and 16 | 2288 |
| 46 and 176 | 4048 |