Greatest Common Divisor (GCD) of 110 and 195
The greatest common divisor (GCD) of 110 and 195 is 5.
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 110 and 195?
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 | 110 ÷ 195 = 0 remainder 110 |
| 2 | 195 ÷ 110 = 1 remainder 85 |
| 3 | 110 ÷ 85 = 1 remainder 25 |
| 4 | 85 ÷ 25 = 3 remainder 10 |
| 5 | 25 ÷ 10 = 2 remainder 5 |
| 6 | 10 ÷ 5 = 2 remainder 0 |
Examples of GCD Calculations
| Numbers | GCD |
|---|---|
| 125 and 143 | 1 |
| 105 and 26 | 1 |
| 25 and 117 | 1 |
| 72 and 195 | 3 |
| 162 and 171 | 9 |