Least Common Multiple (LCM) of 197 and 105
The least common multiple (LCM) of 197 and 105 is 20685.
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 197 and 105?
First, calculate the GCD of 197 and 105 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 197 ÷ 105 = 1 remainder 92 |
| 2 | 105 ÷ 92 = 1 remainder 13 |
| 3 | 92 ÷ 13 = 7 remainder 1 |
| 4 | 13 ÷ 1 = 13 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 45 and 138 | 2070 |
| 79 and 54 | 4266 |
| 101 and 31 | 3131 |
| 45 and 76 | 3420 |
| 13 and 91 | 91 |