Greatest Common Divisor (GCD) of 192 and 115
The greatest common divisor (GCD) of 192 and 115 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 192 and 115?
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 | 192 ÷ 115 = 1 remainder 77 |
| 2 | 115 ÷ 77 = 1 remainder 38 |
| 3 | 77 ÷ 38 = 2 remainder 1 |
| 4 | 38 ÷ 1 = 38 remainder 0 |
Examples of GCD Calculations
| Numbers | GCD |
|---|---|
| 154 and 154 | 154 |
| 65 and 63 | 1 |
| 34 and 127 | 1 |
| 183 and 160 | 1 |
| 171 and 198 | 9 |