Least Common Multiple (LCM) of 81 and 136
The least common multiple (LCM) of 81 and 136 is 11016.
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 136?
First, calculate the GCD of 81 and 136 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 81 ÷ 136 = 0 remainder 81 |
| 2 | 136 ÷ 81 = 1 remainder 55 |
| 3 | 81 ÷ 55 = 1 remainder 26 |
| 4 | 55 ÷ 26 = 2 remainder 3 |
| 5 | 26 ÷ 3 = 8 remainder 2 |
| 6 | 3 ÷ 2 = 1 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 21 and 150 | 1050 |
| 61 and 95 | 5795 |
| 16 and 12 | 48 |
| 39 and 40 | 1560 |
| 129 and 66 | 2838 |