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 |
|---|---|
| 170 and 150 | 2550 |
| 158 and 156 | 12324 |
| 140 and 130 | 1820 |
| 39 and 170 | 6630 |
| 137 and 50 | 6850 |