Least Common Multiple (LCM) of 57 and 73
The least common multiple (LCM) of 57 and 73 is 4161.
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 73?
First, calculate the GCD of 57 and 73 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 57 ÷ 73 = 0 remainder 57 |
| 2 | 73 ÷ 57 = 1 remainder 16 |
| 3 | 57 ÷ 16 = 3 remainder 9 |
| 4 | 16 ÷ 9 = 1 remainder 7 |
| 5 | 9 ÷ 7 = 1 remainder 2 |
| 6 | 7 ÷ 2 = 3 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 23 and 197 | 4531 |
| 173 and 39 | 6747 |
| 178 and 45 | 8010 |
| 188 and 45 | 8460 |
| 16 and 145 | 2320 |