Greatest Common Divisor (GCD) of 116 and 68
The greatest common divisor (GCD) of 116 and 68 is 4.
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 116 and 68?
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 | 116 ÷ 68 = 1 remainder 48 |
| 2 | 68 ÷ 48 = 1 remainder 20 |
| 3 | 48 ÷ 20 = 2 remainder 8 |
| 4 | 20 ÷ 8 = 2 remainder 4 |
| 5 | 8 ÷ 4 = 2 remainder 0 |
Examples of GCD Calculations
| Numbers | GCD |
|---|---|
| 119 and 115 | 1 |
| 168 and 37 | 1 |
| 30 and 104 | 2 |
| 142 and 155 | 1 |
| 195 and 55 | 5 |