Greatest Common Divisor (GCD) of 157 and 200
The greatest common divisor (GCD) of 157 and 200 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 157 and 200?
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 | 157 ÷ 200 = 0 remainder 157 |
| 2 | 200 ÷ 157 = 1 remainder 43 |
| 3 | 157 ÷ 43 = 3 remainder 28 |
| 4 | 43 ÷ 28 = 1 remainder 15 |
| 5 | 28 ÷ 15 = 1 remainder 13 |
| 6 | 15 ÷ 13 = 1 remainder 2 |
| 7 | 13 ÷ 2 = 6 remainder 1 |
| 8 | 2 ÷ 1 = 2 remainder 0 |
Examples of GCD Calculations
| Numbers | GCD |
|---|---|
| 141 and 31 | 1 |
| 41 and 168 | 1 |
| 122 and 50 | 2 |
| 94 and 58 | 2 |
| 183 and 149 | 1 |