Least Common Multiple (LCM) of 43 and 193
The least common multiple (LCM) of 43 and 193 is 8299.
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 43 and 193?
First, calculate the GCD of 43 and 193 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 43 ÷ 193 = 0 remainder 43 |
| 2 | 193 ÷ 43 = 4 remainder 21 |
| 3 | 43 ÷ 21 = 2 remainder 1 |
| 4 | 21 ÷ 1 = 21 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 158 and 138 | 10902 |
| 43 and 193 | 8299 |
| 19 and 20 | 380 |
| 199 and 193 | 38407 |
| 195 and 47 | 9165 |