Greatest Common Divisor (GCD) of 100 and 190
The greatest common divisor (GCD) of 100 and 190 is 10.
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 100 and 190?
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 | 100 ÷ 190 = 0 remainder 100 |
| 2 | 190 ÷ 100 = 1 remainder 90 |
| 3 | 100 ÷ 90 = 1 remainder 10 |
| 4 | 90 ÷ 10 = 9 remainder 0 |
Examples of GCD Calculations
| Numbers | GCD |
|---|---|
| 17 and 106 | 1 |
| 25 and 52 | 1 |
| 142 and 83 | 1 |
| 126 and 166 | 2 |
| 68 and 78 | 2 |