How to prevent overflows in C.

Question

I wrote a code to find the approximate number of prime numbers using a series. when I enter 2, I get 6 as my approximation instead of 0.6.. thanks in advance. 😃

Answer 1

Ina thanks sooooo much.. it worked 😊😊

Answer 2

https://code.sololearn.com/c8mr9Mm0ZA46/#c

Answer 3

Ina .. thanks for the reply.. I tried it but I get 6.00 instead of 0.6.

Answer 4

should the power function appear before the main function.. sorry.. I am still learning how to use functions in C😅