Least Common Multiple (LCM) of 165 and 87
The least common multiple (LCM) of 165 and 87 is 4785.
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 87?
First, calculate the GCD of 165 and 87 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 165 ÷ 87 = 1 remainder 78 |
| 2 | 87 ÷ 78 = 1 remainder 9 |
| 3 | 78 ÷ 9 = 8 remainder 6 |
| 4 | 9 ÷ 6 = 1 remainder 3 |
| 5 | 6 ÷ 3 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 80 and 21 | 1680 |
| 182 and 155 | 28210 |
| 175 and 198 | 34650 |
| 64 and 113 | 7232 |
| 22 and 194 | 2134 |