Least Common Multiple (LCM) of 155 and 108
The least common multiple (LCM) of 155 and 108 is 16740.
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 155 and 108?
First, calculate the GCD of 155 and 108 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 155 ÷ 108 = 1 remainder 47 |
| 2 | 108 ÷ 47 = 2 remainder 14 |
| 3 | 47 ÷ 14 = 3 remainder 5 |
| 4 | 14 ÷ 5 = 2 remainder 4 |
| 5 | 5 ÷ 4 = 1 remainder 1 |
| 6 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 80 and 197 | 15760 |
| 54 and 168 | 1512 |
| 79 and 45 | 3555 |
| 23 and 89 | 2047 |
| 139 and 57 | 7923 |