Greatest Common Divisor (GCD) of 197 and 200
The greatest common divisor (GCD) of 197 and 200 is 1.
What is the Greatest Common Divisor (GCD)?
The GCD of two integers is the largest positive integer that divides both numbers without leaving a remainder. It is useful in simplifying fractions, finding common factors, and in number theory.
How to Calculate the GCD of 197 and 200?
We use the Euclidean algorithm, which involves the following steps:
- Divide the larger number by the smaller number.
- Replace the larger number with the smaller number and the smaller number with the remainder from the division.
- Repeat this process until the remainder is zero.
- The non-zero remainder just before zero is the GCD.
Step-by-Step Euclidean Algorithm
| Step | Calculation |
|---|---|
| 1 | 197 ÷ 200 = 0 remainder 197 |
| 2 | 200 ÷ 197 = 1 remainder 3 |
| 3 | 197 ÷ 3 = 65 remainder 2 |
| 4 | 3 ÷ 2 = 1 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of GCD Calculations
| Numbers | GCD |
|---|---|
| 96 and 193 | 1 |
| 27 and 42 | 3 |
| 157 and 67 | 1 |
| 187 and 157 | 1 |
| 198 and 124 | 2 |