Least Common Multiple (LCM) of 123 and 196
The least common multiple (LCM) of 123 and 196 is 24108.
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 123 and 196?
First, calculate the GCD of 123 and 196 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 123 ÷ 196 = 0 remainder 123 |
| 2 | 196 ÷ 123 = 1 remainder 73 |
| 3 | 123 ÷ 73 = 1 remainder 50 |
| 4 | 73 ÷ 50 = 1 remainder 23 |
| 5 | 50 ÷ 23 = 2 remainder 4 |
| 6 | 23 ÷ 4 = 5 remainder 3 |
| 7 | 4 ÷ 3 = 1 remainder 1 |
| 8 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 182 and 118 | 10738 |
| 195 and 195 | 195 |
| 41 and 82 | 82 |
| 119 and 126 | 2142 |
| 35 and 65 | 455 |