Least Common Multiple (LCM) of 55 and 173
The least common multiple (LCM) of 55 and 173 is 9515.
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 55 and 173?
First, calculate the GCD of 55 and 173 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 55 ÷ 173 = 0 remainder 55 |
| 2 | 173 ÷ 55 = 3 remainder 8 |
| 3 | 55 ÷ 8 = 6 remainder 7 |
| 4 | 8 ÷ 7 = 1 remainder 1 |
| 5 | 7 ÷ 1 = 7 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 70 and 28 | 140 |
| 192 and 100 | 4800 |
| 166 and 41 | 6806 |
| 122 and 76 | 4636 |
| 81 and 72 | 648 |