Greatest Common Divisor (GCD) of 177 and 186
The greatest common divisor (GCD) of 177 and 186 is 3.
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 177 and 186?
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 | 177 ÷ 186 = 0 remainder 177 |
| 2 | 186 ÷ 177 = 1 remainder 9 |
| 3 | 177 ÷ 9 = 19 remainder 6 |
| 4 | 9 ÷ 6 = 1 remainder 3 |
| 5 | 6 ÷ 3 = 2 remainder 0 |
Examples of GCD Calculations
| Numbers | GCD |
|---|---|
| 160 and 100 | 20 |
| 85 and 150 | 5 |
| 173 and 181 | 1 |
| 117 and 97 | 1 |
| 197 and 24 | 1 |