Least Common Multiple (LCM) of 57 and 130
The least common multiple (LCM) of 57 and 130 is 7410.
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 130?
First, calculate the GCD of 57 and 130 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 57 ÷ 130 = 0 remainder 57 |
| 2 | 130 ÷ 57 = 2 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 |
|---|---|
| 195 and 65 | 195 |
| 106 and 185 | 19610 |
| 100 and 195 | 3900 |
| 123 and 71 | 8733 |
| 10 and 172 | 860 |