Least Common Multiple (LCM) of 155 and 173
The least common multiple (LCM) of 155 and 173 is 26815.
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 173?
First, calculate the GCD of 155 and 173 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 155 ÷ 173 = 0 remainder 155 |
| 2 | 173 ÷ 155 = 1 remainder 18 |
| 3 | 155 ÷ 18 = 8 remainder 11 |
| 4 | 18 ÷ 11 = 1 remainder 7 |
| 5 | 11 ÷ 7 = 1 remainder 4 |
| 6 | 7 ÷ 4 = 1 remainder 3 |
| 7 | 4 ÷ 3 = 1 remainder 1 |
| 8 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 149 and 193 | 28757 |
| 123 and 60 | 2460 |
| 148 and 79 | 11692 |
| 124 and 136 | 4216 |
| 37 and 90 | 3330 |