Least Common Multiple (LCM) of 81 and 150
The least common multiple (LCM) of 81 and 150 is 4050.
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 150?
First, calculate the GCD of 81 and 150 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 81 ÷ 150 = 0 remainder 81 |
| 2 | 150 ÷ 81 = 1 remainder 69 |
| 3 | 81 ÷ 69 = 1 remainder 12 |
| 4 | 69 ÷ 12 = 5 remainder 9 |
| 5 | 12 ÷ 9 = 1 remainder 3 |
| 6 | 9 ÷ 3 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 179 and 22 | 3938 |
| 81 and 166 | 13446 |
| 185 and 151 | 27935 |
| 65 and 17 | 1105 |
| 72 and 70 | 2520 |