Least Common Multiple (LCM) of 87 and 77
The least common multiple (LCM) of 87 and 77 is 6699.
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 87 and 77?
First, calculate the GCD of 87 and 77 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 87 ÷ 77 = 1 remainder 10 |
| 2 | 77 ÷ 10 = 7 remainder 7 |
| 3 | 10 ÷ 7 = 1 remainder 3 |
| 4 | 7 ÷ 3 = 2 remainder 1 |
| 5 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 41 and 153 | 6273 |
| 182 and 23 | 4186 |
| 157 and 158 | 24806 |
| 104 and 198 | 10296 |
| 105 and 60 | 420 |