Least Common Multiple (LCM) of 125 and 128
The least common multiple (LCM) of 125 and 128 is 16000.
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 125 and 128?
First, calculate the GCD of 125 and 128 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 125 ÷ 128 = 0 remainder 125 |
| 2 | 128 ÷ 125 = 1 remainder 3 |
| 3 | 125 ÷ 3 = 41 remainder 2 |
| 4 | 3 ÷ 2 = 1 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 18 and 147 | 882 |
| 185 and 182 | 33670 |
| 177 and 43 | 7611 |
| 43 and 13 | 559 |
| 17 and 117 | 1989 |