Least Common Multiple (LCM) of 61 and 57
The least common multiple (LCM) of 61 and 57 is 3477.
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 61 and 57?
First, calculate the GCD of 61 and 57 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 61 ÷ 57 = 1 remainder 4 |
| 2 | 57 ÷ 4 = 14 remainder 1 |
| 3 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 124 and 20 | 620 |
| 197 and 154 | 30338 |
| 183 and 189 | 11529 |
| 53 and 143 | 7579 |
| 56 and 24 | 168 |