Least Common Multiple (LCM) of 196 and 78
The least common multiple (LCM) of 196 and 78 is 7644.
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 196 and 78?
First, calculate the GCD of 196 and 78 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 196 ÷ 78 = 2 remainder 40 |
| 2 | 78 ÷ 40 = 1 remainder 38 |
| 3 | 40 ÷ 38 = 1 remainder 2 |
| 4 | 38 ÷ 2 = 19 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 128 and 46 | 2944 |
| 28 and 73 | 2044 |
| 64 and 13 | 832 |
| 200 and 184 | 4600 |
| 60 and 123 | 2460 |