Least Common Multiple (LCM) of 143 and 47
The least common multiple (LCM) of 143 and 47 is 6721.
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 143 and 47?
First, calculate the GCD of 143 and 47 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 143 ÷ 47 = 3 remainder 2 |
| 2 | 47 ÷ 2 = 23 remainder 1 |
| 3 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 155 and 197 | 30535 |
| 11 and 130 | 1430 |
| 100 and 162 | 8100 |
| 159 and 45 | 2385 |
| 39 and 49 | 1911 |