Least Common Multiple (LCM) of 57 and 155
The least common multiple (LCM) of 57 and 155 is 8835.
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 155?
First, calculate the GCD of 57 and 155 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 57 ÷ 155 = 0 remainder 57 |
| 2 | 155 ÷ 57 = 2 remainder 41 |
| 3 | 57 ÷ 41 = 1 remainder 16 |
| 4 | 41 ÷ 16 = 2 remainder 9 |
| 5 | 16 ÷ 9 = 1 remainder 7 |
| 6 | 9 ÷ 7 = 1 remainder 2 |
| 7 | 7 ÷ 2 = 3 remainder 1 |
| 8 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 118 and 168 | 9912 |
| 114 and 76 | 228 |
| 197 and 43 | 8471 |
| 10 and 70 | 70 |
| 168 and 123 | 6888 |