Least Common Multiple (LCM) of 87 and 126
The least common multiple (LCM) of 87 and 126 is 3654.
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 126?
First, calculate the GCD of 87 and 126 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 87 ÷ 126 = 0 remainder 87 |
| 2 | 126 ÷ 87 = 1 remainder 39 |
| 3 | 87 ÷ 39 = 2 remainder 9 |
| 4 | 39 ÷ 9 = 4 remainder 3 |
| 5 | 9 ÷ 3 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 167 and 17 | 2839 |
| 124 and 30 | 1860 |
| 74 and 165 | 12210 |
| 197 and 198 | 39006 |
| 101 and 126 | 12726 |