Least Common Multiple (LCM) of 190 and 81
The least common multiple (LCM) of 190 and 81 is 15390.
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 190 and 81?
First, calculate the GCD of 190 and 81 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 190 ÷ 81 = 2 remainder 28 |
| 2 | 81 ÷ 28 = 2 remainder 25 |
| 3 | 28 ÷ 25 = 1 remainder 3 |
| 4 | 25 ÷ 3 = 8 remainder 1 |
| 5 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 101 and 27 | 2727 |
| 15 and 186 | 930 |
| 25 and 135 | 675 |
| 109 and 98 | 10682 |
| 29 and 145 | 145 |