Least Common Multiple (LCM) of 81 and 164
The least common multiple (LCM) of 81 and 164 is 13284.
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 164?
First, calculate the GCD of 81 and 164 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 81 ÷ 164 = 0 remainder 81 |
| 2 | 164 ÷ 81 = 2 remainder 2 |
| 3 | 81 ÷ 2 = 40 remainder 1 |
| 4 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 39 and 54 | 702 |
| 16 and 147 | 2352 |
| 93 and 138 | 4278 |
| 166 and 99 | 16434 |
| 110 and 18 | 990 |