Greatest Common Divisor (GCD) of 166 and 165
The greatest common divisor (GCD) of 166 and 165 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 166 and 165?
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 | 166 ÷ 165 = 1 remainder 1 |
| 2 | 165 ÷ 1 = 165 remainder 0 |
Examples of GCD Calculations
| Numbers | GCD |
|---|---|
| 167 and 76 | 1 |
| 189 and 86 | 1 |
| 61 and 28 | 1 |
| 127 and 31 | 1 |
| 139 and 168 | 1 |