Least Common Multiple (LCM) of 57 and 39
The least common multiple (LCM) of 57 and 39 is 741.
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 57 and 39?
First, calculate the GCD of 57 and 39 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 57 ÷ 39 = 1 remainder 18 |
| 2 | 39 ÷ 18 = 2 remainder 3 |
| 3 | 18 ÷ 3 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 84 and 19 | 1596 |
| 28 and 74 | 1036 |
| 29 and 118 | 3422 |
| 163 and 140 | 22820 |
| 200 and 18 | 1800 |