Least Common Multiple (LCM) of 30 and 76
The least common multiple (LCM) of 30 and 76 is 1140.
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 76?
First, calculate the GCD of 30 and 76 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 30 ÷ 76 = 0 remainder 30 |
| 2 | 76 ÷ 30 = 2 remainder 16 |
| 3 | 30 ÷ 16 = 1 remainder 14 |
| 4 | 16 ÷ 14 = 1 remainder 2 |
| 5 | 14 ÷ 2 = 7 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 74 and 170 | 6290 |
| 189 and 166 | 31374 |
| 198 and 146 | 14454 |
| 35 and 47 | 1645 |
| 43 and 84 | 3612 |