Least Common Multiple (LCM) of 27 and 87
The least common multiple (LCM) of 27 and 87 is 783.
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 27 and 87?
First, calculate the GCD of 27 and 87 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 27 ÷ 87 = 0 remainder 27 |
| 2 | 87 ÷ 27 = 3 remainder 6 |
| 3 | 27 ÷ 6 = 4 remainder 3 |
| 4 | 6 ÷ 3 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 44 and 15 | 660 |
| 130 and 166 | 10790 |
| 194 and 193 | 37442 |
| 114 and 98 | 5586 |
| 15 and 28 | 420 |