Least Common Multiple (LCM) of 81 and 116
The least common multiple (LCM) of 81 and 116 is 9396.
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 116?
First, calculate the GCD of 81 and 116 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 81 ÷ 116 = 0 remainder 81 |
| 2 | 116 ÷ 81 = 1 remainder 35 |
| 3 | 81 ÷ 35 = 2 remainder 11 |
| 4 | 35 ÷ 11 = 3 remainder 2 |
| 5 | 11 ÷ 2 = 5 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 143 and 99 | 1287 |
| 39 and 174 | 2262 |
| 161 and 98 | 2254 |
| 168 and 45 | 2520 |
| 108 and 96 | 864 |