Least Common Multiple (LCM) of 51 and 197
The least common multiple (LCM) of 51 and 197 is 10047.
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 51 and 197?
First, calculate the GCD of 51 and 197 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 51 ÷ 197 = 0 remainder 51 |
| 2 | 197 ÷ 51 = 3 remainder 44 |
| 3 | 51 ÷ 44 = 1 remainder 7 |
| 4 | 44 ÷ 7 = 6 remainder 2 |
| 5 | 7 ÷ 2 = 3 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 31 and 156 | 4836 |
| 187 and 114 | 21318 |
| 15 and 13 | 195 |
| 18 and 85 | 1530 |
| 16 and 120 | 240 |