Least Common Multiple (LCM) of 81 and 95
The least common multiple (LCM) of 81 and 95 is 7695.
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 95?
First, calculate the GCD of 81 and 95 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 81 ÷ 95 = 0 remainder 81 |
| 2 | 95 ÷ 81 = 1 remainder 14 |
| 3 | 81 ÷ 14 = 5 remainder 11 |
| 4 | 14 ÷ 11 = 1 remainder 3 |
| 5 | 11 ÷ 3 = 3 remainder 2 |
| 6 | 3 ÷ 2 = 1 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 128 and 28 | 896 |
| 57 and 171 | 171 |
| 93 and 179 | 16647 |
| 78 and 78 | 78 |
| 197 and 174 | 34278 |