Least Common Multiple (LCM) of 78 and 97
The least common multiple (LCM) of 78 and 97 is 7566.
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 97?
First, calculate the GCD of 78 and 97 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 78 ÷ 97 = 0 remainder 78 |
| 2 | 97 ÷ 78 = 1 remainder 19 |
| 3 | 78 ÷ 19 = 4 remainder 2 |
| 4 | 19 ÷ 2 = 9 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 175 and 32 | 5600 |
| 116 and 69 | 8004 |
| 124 and 56 | 1736 |
| 185 and 40 | 1480 |
| 83 and 57 | 4731 |