Least Common Multiple (LCM) of 78 and 132
The least common multiple (LCM) of 78 and 132 is 1716.
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 132?
First, calculate the GCD of 78 and 132 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 78 ÷ 132 = 0 remainder 78 |
| 2 | 132 ÷ 78 = 1 remainder 54 |
| 3 | 78 ÷ 54 = 1 remainder 24 |
| 4 | 54 ÷ 24 = 2 remainder 6 |
| 5 | 24 ÷ 6 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 197 and 124 | 24428 |
| 195 and 180 | 2340 |
| 197 and 195 | 38415 |
| 17 and 51 | 51 |
| 143 and 159 | 22737 |