Least Common Multiple (LCM) of 28 and 57
The least common multiple (LCM) of 28 and 57 is 1596.
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 28 and 57?
First, calculate the GCD of 28 and 57 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 28 ÷ 57 = 0 remainder 28 |
| 2 | 57 ÷ 28 = 2 remainder 1 |
| 3 | 28 ÷ 1 = 28 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 172 and 123 | 21156 |
| 47 and 139 | 6533 |
| 63 and 101 | 6363 |
| 82 and 127 | 10414 |
| 114 and 35 | 3990 |