Least Common Multiple (LCM) of 105 and 165
The least common multiple (LCM) of 105 and 165 is 1155.
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 105 and 165?
First, calculate the GCD of 105 and 165 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 105 ÷ 165 = 0 remainder 105 |
| 2 | 165 ÷ 105 = 1 remainder 60 |
| 3 | 105 ÷ 60 = 1 remainder 45 |
| 4 | 60 ÷ 45 = 1 remainder 15 |
| 5 | 45 ÷ 15 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 14 and 47 | 658 |
| 171 and 48 | 2736 |
| 82 and 159 | 13038 |
| 185 and 95 | 3515 |
| 103 and 125 | 12875 |