Least Common Multiple (LCM) of 81 and 29
The least common multiple (LCM) of 81 and 29 is 2349.
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 29?
First, calculate the GCD of 81 and 29 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 81 ÷ 29 = 2 remainder 23 |
| 2 | 29 ÷ 23 = 1 remainder 6 |
| 3 | 23 ÷ 6 = 3 remainder 5 |
| 4 | 6 ÷ 5 = 1 remainder 1 |
| 5 | 5 ÷ 1 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 140 and 22 | 1540 |
| 137 and 30 | 4110 |
| 151 and 23 | 3473 |
| 85 and 106 | 9010 |
| 167 and 64 | 10688 |