Least Common Multiple (LCM) of 195 and 81
The least common multiple (LCM) of 195 and 81 is 5265.
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 195 and 81?
First, calculate the GCD of 195 and 81 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 195 ÷ 81 = 2 remainder 33 |
| 2 | 81 ÷ 33 = 2 remainder 15 |
| 3 | 33 ÷ 15 = 2 remainder 3 |
| 4 | 15 ÷ 3 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 149 and 21 | 3129 |
| 110 and 51 | 5610 |
| 115 and 36 | 4140 |
| 12 and 14 | 84 |
| 152 and 154 | 11704 |