Least Common Multiple (LCM) of 19 and 181
The least common multiple (LCM) of 19 and 181 is 3439.
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 19 and 181?
First, calculate the GCD of 19 and 181 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 19 ÷ 181 = 0 remainder 19 |
| 2 | 181 ÷ 19 = 9 remainder 10 |
| 3 | 19 ÷ 10 = 1 remainder 9 |
| 4 | 10 ÷ 9 = 1 remainder 1 |
| 5 | 9 ÷ 1 = 9 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 194 and 154 | 14938 |
| 111 and 135 | 4995 |
| 156 and 141 | 7332 |
| 25 and 58 | 1450 |
| 140 and 110 | 1540 |