Least Common Multiple (LCM) of 87 and 125
The least common multiple (LCM) of 87 and 125 is 10875.
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 125?
First, calculate the GCD of 87 and 125 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 87 ÷ 125 = 0 remainder 87 |
| 2 | 125 ÷ 87 = 1 remainder 38 |
| 3 | 87 ÷ 38 = 2 remainder 11 |
| 4 | 38 ÷ 11 = 3 remainder 5 |
| 5 | 11 ÷ 5 = 2 remainder 1 |
| 6 | 5 ÷ 1 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 74 and 121 | 8954 |
| 41 and 175 | 7175 |
| 109 and 147 | 16023 |
| 122 and 150 | 9150 |
| 81 and 15 | 405 |