Least Common Multiple (LCM) of 165 and 78
The least common multiple (LCM) of 165 and 78 is 4290.
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 165 and 78?
First, calculate the GCD of 165 and 78 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 165 ÷ 78 = 2 remainder 9 |
| 2 | 78 ÷ 9 = 8 remainder 6 |
| 3 | 9 ÷ 6 = 1 remainder 3 |
| 4 | 6 ÷ 3 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 159 and 154 | 24486 |
| 186 and 81 | 5022 |
| 127 and 196 | 24892 |
| 189 and 168 | 1512 |
| 183 and 20 | 3660 |