Least Common Multiple (LCM) of 181 and 105
The least common multiple (LCM) of 181 and 105 is 19005.
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 181 and 105?
First, calculate the GCD of 181 and 105 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 181 ÷ 105 = 1 remainder 76 |
| 2 | 105 ÷ 76 = 1 remainder 29 |
| 3 | 76 ÷ 29 = 2 remainder 18 |
| 4 | 29 ÷ 18 = 1 remainder 11 |
| 5 | 18 ÷ 11 = 1 remainder 7 |
| 6 | 11 ÷ 7 = 1 remainder 4 |
| 7 | 7 ÷ 4 = 1 remainder 3 |
| 8 | 4 ÷ 3 = 1 remainder 1 |
| 9 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 178 and 128 | 11392 |
| 50 and 185 | 1850 |
| 123 and 13 | 1599 |
| 143 and 122 | 17446 |
| 20 and 33 | 660 |