Least Common Multiple (LCM) of 87 and 181
The least common multiple (LCM) of 87 and 181 is 15747.
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 87 and 181?
First, calculate the GCD of 87 and 181 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 87 ÷ 181 = 0 remainder 87 |
| 2 | 181 ÷ 87 = 2 remainder 7 |
| 3 | 87 ÷ 7 = 12 remainder 3 |
| 4 | 7 ÷ 3 = 2 remainder 1 |
| 5 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 50 and 44 | 1100 |
| 173 and 144 | 24912 |
| 34 and 59 | 2006 |
| 45 and 12 | 180 |
| 40 and 55 | 440 |