Least Common Multiple (LCM) of 80 and 78
The least common multiple (LCM) of 80 and 78 is 3120.
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 80 and 78?
First, calculate the GCD of 80 and 78 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 80 ÷ 78 = 1 remainder 2 |
| 2 | 78 ÷ 2 = 39 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 183 and 37 | 6771 |
| 98 and 73 | 7154 |
| 172 and 93 | 15996 |
| 42 and 191 | 8022 |
| 153 and 143 | 21879 |