Least Common Multiple (LCM) of 57 and 34
The least common multiple (LCM) of 57 and 34 is 1938.
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 34?
First, calculate the GCD of 57 and 34 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 57 ÷ 34 = 1 remainder 23 |
| 2 | 34 ÷ 23 = 1 remainder 11 |
| 3 | 23 ÷ 11 = 2 remainder 1 |
| 4 | 11 ÷ 1 = 11 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 120 and 70 | 840 |
| 185 and 142 | 26270 |
| 21 and 73 | 1533 |
| 99 and 20 | 1980 |
| 121 and 157 | 18997 |