Least Common Multiple (LCM) of 105 and 87
The least common multiple (LCM) of 105 and 87 is 3045.
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 87?
First, calculate the GCD of 105 and 87 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 105 ÷ 87 = 1 remainder 18 |
| 2 | 87 ÷ 18 = 4 remainder 15 |
| 3 | 18 ÷ 15 = 1 remainder 3 |
| 4 | 15 ÷ 3 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 191 and 178 | 33998 |
| 83 and 53 | 4399 |
| 164 and 168 | 6888 |
| 31 and 159 | 4929 |
| 156 and 24 | 312 |