Least Common Multiple (LCM) of 30 and 144
The least common multiple (LCM) of 30 and 144 is 720.
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 30 and 144?
First, calculate the GCD of 30 and 144 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 30 ÷ 144 = 0 remainder 30 |
| 2 | 144 ÷ 30 = 4 remainder 24 |
| 3 | 30 ÷ 24 = 1 remainder 6 |
| 4 | 24 ÷ 6 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 196 and 61 | 11956 |
| 159 and 104 | 16536 |
| 196 and 130 | 12740 |
| 96 and 58 | 2784 |
| 107 and 60 | 6420 |