Least Common Multiple (LCM) of 87 and 80
The least common multiple (LCM) of 87 and 80 is 6960.
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 80?
First, calculate the GCD of 87 and 80 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 87 ÷ 80 = 1 remainder 7 |
| 2 | 80 ÷ 7 = 11 remainder 3 |
| 3 | 7 ÷ 3 = 2 remainder 1 |
| 4 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 195 and 193 | 37635 |
| 163 and 168 | 27384 |
| 128 and 133 | 17024 |
| 41 and 145 | 5945 |
| 125 and 193 | 24125 |