Least Common Multiple (LCM) of 171 and 43
The least common multiple (LCM) of 171 and 43 is 7353.
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 171 and 43?
First, calculate the GCD of 171 and 43 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 171 ÷ 43 = 3 remainder 42 |
| 2 | 43 ÷ 42 = 1 remainder 1 |
| 3 | 42 ÷ 1 = 42 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 165 and 72 | 3960 |
| 78 and 153 | 3978 |
| 176 and 188 | 8272 |
| 195 and 35 | 1365 |
| 90 and 18 | 90 |