Least Common Multiple (LCM) of 80 and 57
The least common multiple (LCM) of 80 and 57 is 4560.
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 80 and 57?
First, calculate the GCD of 80 and 57 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 80 ÷ 57 = 1 remainder 23 |
| 2 | 57 ÷ 23 = 2 remainder 11 |
| 3 | 23 ÷ 11 = 2 remainder 1 |
| 4 | 11 ÷ 1 = 11 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 29 and 15 | 435 |
| 92 and 64 | 1472 |
| 133 and 170 | 22610 |
| 78 and 200 | 7800 |
| 122 and 40 | 2440 |