Least Common Multiple (LCM) of 71 and 196
The least common multiple (LCM) of 71 and 196 is 13916.
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 71 and 196?
First, calculate the GCD of 71 and 196 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 71 ÷ 196 = 0 remainder 71 |
| 2 | 196 ÷ 71 = 2 remainder 54 |
| 3 | 71 ÷ 54 = 1 remainder 17 |
| 4 | 54 ÷ 17 = 3 remainder 3 |
| 5 | 17 ÷ 3 = 5 remainder 2 |
| 6 | 3 ÷ 2 = 1 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 197 and 172 | 33884 |
| 163 and 140 | 22820 |
| 59 and 199 | 11741 |
| 170 and 168 | 14280 |
| 140 and 146 | 10220 |