Least Common Multiple (LCM) of 68 and 78
The least common multiple (LCM) of 68 and 78 is 2652.
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 68 and 78?
First, calculate the GCD of 68 and 78 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 68 ÷ 78 = 0 remainder 68 |
| 2 | 78 ÷ 68 = 1 remainder 10 |
| 3 | 68 ÷ 10 = 6 remainder 8 |
| 4 | 10 ÷ 8 = 1 remainder 2 |
| 5 | 8 ÷ 2 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 123 and 30 | 1230 |
| 55 and 47 | 2585 |
| 93 and 37 | 3441 |
| 174 and 63 | 3654 |
| 52 and 179 | 9308 |