
Greatest Common Divisor (GCD) of 133 and 17
The greatest common divisor (GCD) of 133 and 17 is 1.
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 133 and 17?
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 | 133 ÷ 17 = 7 remainder 14 |
2 | 17 ÷ 14 = 1 remainder 3 |
3 | 14 ÷ 3 = 4 remainder 2 |
4 | 3 ÷ 2 = 1 remainder 1 |
5 | 2 ÷ 1 = 2 remainder 0 |
Examples of GCD Calculations
Numbers | GCD |
---|---|
139 and 57 | 1 |
175 and 182 | 7 |
151 and 65 | 1 |
161 and 52 | 1 |
148 and 27 | 1 |