Least Common Multiple (LCM) of 78 and 51
The least common multiple (LCM) of 78 and 51 is 1326.
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 51?
First, calculate the GCD of 78 and 51 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 78 ÷ 51 = 1 remainder 27 |
| 2 | 51 ÷ 27 = 1 remainder 24 |
| 3 | 27 ÷ 24 = 1 remainder 3 |
| 4 | 24 ÷ 3 = 8 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 100 and 50 | 100 |
| 64 and 110 | 3520 |
| 132 and 108 | 1188 |
| 181 and 158 | 28598 |
| 144 and 12 | 144 |