Greatest Common Divisor (GCD) of 196 and 126
The greatest common divisor (GCD) of 196 and 126 is 14.
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 196 and 126?
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 | 196 ÷ 126 = 1 remainder 70 |
| 2 | 126 ÷ 70 = 1 remainder 56 |
| 3 | 70 ÷ 56 = 1 remainder 14 |
| 4 | 56 ÷ 14 = 4 remainder 0 |
Examples of GCD Calculations
| Numbers | GCD |
|---|---|
| 100 and 25 | 25 |
| 49 and 140 | 7 |
| 132 and 151 | 1 |
| 67 and 41 | 1 |
| 111 and 59 | 1 |