Least Common Multiple (LCM) of 81 and 14
The least common multiple (LCM) of 81 and 14 is 1134.
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 81 and 14?
First, calculate the GCD of 81 and 14 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 81 ÷ 14 = 5 remainder 11 |
| 2 | 14 ÷ 11 = 1 remainder 3 |
| 3 | 11 ÷ 3 = 3 remainder 2 |
| 4 | 3 ÷ 2 = 1 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 115 and 22 | 2530 |
| 22 and 129 | 2838 |
| 10 and 81 | 810 |
| 78 and 89 | 6942 |
| 70 and 163 | 11410 |