Least Common Multiple (LCM) of 55 and 181
The least common multiple (LCM) of 55 and 181 is 9955.
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 181?
First, calculate the GCD of 55 and 181 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 55 ÷ 181 = 0 remainder 55 |
| 2 | 181 ÷ 55 = 3 remainder 16 |
| 3 | 55 ÷ 16 = 3 remainder 7 |
| 4 | 16 ÷ 7 = 2 remainder 2 |
| 5 | 7 ÷ 2 = 3 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 15 and 47 | 705 |
| 67 and 126 | 8442 |
| 87 and 77 | 6699 |
| 76 and 158 | 6004 |
| 39 and 15 | 195 |