Least Common Multiple (LCM) of 47 and 185
The least common multiple (LCM) of 47 and 185 is 8695.
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 47 and 185?
First, calculate the GCD of 47 and 185 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 47 ÷ 185 = 0 remainder 47 |
| 2 | 185 ÷ 47 = 3 remainder 44 |
| 3 | 47 ÷ 44 = 1 remainder 3 |
| 4 | 44 ÷ 3 = 14 remainder 2 |
| 5 | 3 ÷ 2 = 1 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 38 and 142 | 2698 |
| 80 and 196 | 3920 |
| 180 and 170 | 3060 |
| 197 and 13 | 2561 |
| 165 and 197 | 32505 |