**The Program in C++ Program to Display First 10 Fermat Numbers is given below:**

```
#include <iostream>
#include <cmath>
using namespace std;
int main() {
int fermatNumber;
cout << "Hello Codeauri Family, the first 10 Fermat numbers are:" << endl;
for (int i = 0; i < 10; i++) {
fermatNumber = pow(2, pow(2, i)) + 1;
cout << fermatNumber << endl;
}
return 0;
}
```

## Output:

Hello Codeauri Family, the first 10 Fermat numbers are:

3

5

17

257

65537

-2147483648

-2147483648

-2147483648

-2147483648

-2147483648

## Pro-Tips**💡**

In this program, the Fermat numbers are calculated using the formula `fermatNumber = pow(2, pow(2, i)) + 1`

, where `i`

is the index of the Fermat number, starting from 0.

The `pow`

function is used to calculate powers.

The `for`

loop runs 10 times, each time calculating the next Fermat number and printing it to the standard output.

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