Least Common Multiple (LCM) of 81 and 37
The least common multiple (LCM) of 81 and 37 is 2997.
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 37?
First, calculate the GCD of 81 and 37 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 81 ÷ 37 = 2 remainder 7 |
| 2 | 37 ÷ 7 = 5 remainder 2 |
| 3 | 7 ÷ 2 = 3 remainder 1 |
| 4 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 180 and 93 | 5580 |
| 68 and 49 | 3332 |
| 111 and 147 | 5439 |
| 41 and 163 | 6683 |
| 184 and 30 | 2760 |