Least Common Multiple (LCM) of 75 and 144
The least common multiple (LCM) of 75 and 144 is 3600.
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 75 and 144?
First, calculate the GCD of 75 and 144 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 75 ÷ 144 = 0 remainder 75 |
| 2 | 144 ÷ 75 = 1 remainder 69 |
| 3 | 75 ÷ 69 = 1 remainder 6 |
| 4 | 69 ÷ 6 = 11 remainder 3 |
| 5 | 6 ÷ 3 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 183 and 40 | 7320 |
| 162 and 87 | 4698 |
| 105 and 83 | 8715 |
| 67 and 131 | 8777 |
| 155 and 61 | 9455 |