Least Common Multiple (LCM) of 78 and 135
The least common multiple (LCM) of 78 and 135 is 3510.
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 78 and 135?
First, calculate the GCD of 78 and 135 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 78 ÷ 135 = 0 remainder 78 |
| 2 | 135 ÷ 78 = 1 remainder 57 |
| 3 | 78 ÷ 57 = 1 remainder 21 |
| 4 | 57 ÷ 21 = 2 remainder 15 |
| 5 | 21 ÷ 15 = 1 remainder 6 |
| 6 | 15 ÷ 6 = 2 remainder 3 |
| 7 | 6 ÷ 3 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 149 and 23 | 3427 |
| 41 and 90 | 3690 |
| 68 and 124 | 2108 |
| 145 and 76 | 11020 |
| 76 and 70 | 2660 |