Least Common Multiple (LCM) of 128 and 57
The least common multiple (LCM) of 128 and 57 is 7296.
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 128 and 57?
First, calculate the GCD of 128 and 57 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 128 ÷ 57 = 2 remainder 14 |
| 2 | 57 ÷ 14 = 4 remainder 1 |
| 3 | 14 ÷ 1 = 14 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 91 and 123 | 11193 |
| 86 and 30 | 1290 |
| 75 and 182 | 13650 |
| 93 and 185 | 17205 |
| 166 and 38 | 3154 |