Least Common Multiple (LCM) of 40 and 141
The least common multiple (LCM) of 40 and 141 is 5640.
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 40 and 141?
First, calculate the GCD of 40 and 141 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 40 ÷ 141 = 0 remainder 40 |
| 2 | 141 ÷ 40 = 3 remainder 21 |
| 3 | 40 ÷ 21 = 1 remainder 19 |
| 4 | 21 ÷ 19 = 1 remainder 2 |
| 5 | 19 ÷ 2 = 9 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 181 and 122 | 22082 |
| 140 and 100 | 700 |
| 69 and 12 | 276 |
| 51 and 10 | 510 |
| 47 and 49 | 2303 |