Greatest Common Divisor (GCD) of 57 and 95
The greatest common divisor (GCD) of 57 and 95 is 19.
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 57 and 95?
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 | 57 ÷ 95 = 0 remainder 57 |
| 2 | 95 ÷ 57 = 1 remainder 38 |
| 3 | 57 ÷ 38 = 1 remainder 19 |
| 4 | 38 ÷ 19 = 2 remainder 0 |
Examples of GCD Calculations
| Numbers | GCD |
|---|---|
| 136 and 92 | 4 |
| 166 and 118 | 2 |
| 177 and 129 | 3 |
| 143 and 73 | 1 |
| 72 and 52 | 4 |