<div>
Pls give more info. How many digits, what kind of algorithm to you want, is it a homework?
</div>


Pls give more info. How many digits, what kind of algorithm to you want, is it a homework?

<div>
&gt;&gt; to gap between TWO primes...
</div>


<div>
To:rbr<br />
&nbsp;Yes!It is my homework.<br />
&nbsp;I have to write 2 function:<br />
&quot;isPrime&quot; ~ find prime number,if the num is not a prime then return 0; else return 1.<br />
&quot;findPrime&quot; ~ accept an interger and return a prime number which is nearest to it or the same as the given num.<br />
&nbsp;The findPrime function should call the isPrime function to find the prime number.
</div>


To:rbr
 Yes!It is my homework.
 I have to write 2 function:
"isPrime" ~ find prime number,if the num is not a prime then return 0; else return 1.
"findPrime" ~ accept an interger and return a prime number which is nearest to it or the same as the given num.
 The findPrime function should call the isPrime function to find the prime number.

<div>
<div class="content wysiwyg-content">
How to write a C program to find a prime number nearest to an input interger num.
</div>
</div>


How to write a C program to find a prime number nearest to an input interger num.

Nearest prime number

C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.