Least Common Multiple (LCM) of 87 and 144
The least common multiple (LCM) of 87 and 144 is 4176.
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 144?
First, calculate the GCD of 87 and 144 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 87 ÷ 144 = 0 remainder 87 |
| 2 | 144 ÷ 87 = 1 remainder 57 |
| 3 | 87 ÷ 57 = 1 remainder 30 |
| 4 | 57 ÷ 30 = 1 remainder 27 |
| 5 | 30 ÷ 27 = 1 remainder 3 |
| 6 | 27 ÷ 3 = 9 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 90 and 54 | 270 |
| 177 and 192 | 11328 |
| 126 and 98 | 882 |
| 72 and 178 | 6408 |
| 99 and 131 | 12969 |