Greatest Common Divisor (GCD) of 187 and 102
The greatest common divisor (GCD) of 187 and 102 is 17.
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 187 and 102?
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 | 187 ÷ 102 = 1 remainder 85 |
| 2 | 102 ÷ 85 = 1 remainder 17 |
| 3 | 85 ÷ 17 = 5 remainder 0 |
Examples of GCD Calculations
| Numbers | GCD |
|---|---|
| 56 and 195 | 1 |
| 115 and 59 | 1 |
| 160 and 164 | 4 |
| 180 and 98 | 2 |
| 157 and 28 | 1 |