Least Common Multiple (LCM) of 126 and 30
The least common multiple (LCM) of 126 and 30 is 630.
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 126 and 30?
First, calculate the GCD of 126 and 30 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 126 ÷ 30 = 4 remainder 6 |
| 2 | 30 ÷ 6 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 177 and 20 | 3540 |
| 43 and 130 | 5590 |
| 60 and 72 | 360 |
| 84 and 45 | 1260 |
| 46 and 190 | 4370 |