Least Common Multiple (LCM) of 87 and 103
The least common multiple (LCM) of 87 and 103 is 8961.
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 103?
First, calculate the GCD of 87 and 103 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 87 ÷ 103 = 0 remainder 87 |
| 2 | 103 ÷ 87 = 1 remainder 16 |
| 3 | 87 ÷ 16 = 5 remainder 7 |
| 4 | 16 ÷ 7 = 2 remainder 2 |
| 5 | 7 ÷ 2 = 3 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 143 and 72 | 10296 |
| 177 and 11 | 1947 |
| 165 and 85 | 2805 |
| 77 and 11 | 77 |
| 25 and 146 | 3650 |