Least Common Multiple (LCM) of 78 and 118
The least common multiple (LCM) of 78 and 118 is 4602.
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 118?
First, calculate the GCD of 78 and 118 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 78 ÷ 118 = 0 remainder 78 |
| 2 | 118 ÷ 78 = 1 remainder 40 |
| 3 | 78 ÷ 40 = 1 remainder 38 |
| 4 | 40 ÷ 38 = 1 remainder 2 |
| 5 | 38 ÷ 2 = 19 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 27 and 84 | 756 |
| 194 and 90 | 8730 |
| 181 and 181 | 181 |
| 149 and 108 | 16092 |
| 120 and 73 | 8760 |