Greatest Common Divisor (GCD) of 163 and 179
The greatest common divisor (GCD) of 163 and 179 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 163 and 179?
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 | 163 ÷ 179 = 0 remainder 163 |
| 2 | 179 ÷ 163 = 1 remainder 16 |
| 3 | 163 ÷ 16 = 10 remainder 3 |
| 4 | 16 ÷ 3 = 5 remainder 1 |
| 5 | 3 ÷ 1 = 3 remainder 0 |
Examples of GCD Calculations
| Numbers | GCD |
|---|---|
| 162 and 19 | 1 |
| 46 and 23 | 23 |
| 26 and 130 | 26 |
| 191 and 150 | 1 |
| 77 and 103 | 1 |