#include<stdio.h>
#include<math.h>
int main()
{
int i,
n, isprime;
printf( "Enter a positive integer number:
" );
scanf( "%d"
,&n);
if(n<2)
isprime=0;
else
for(i=2;i<sqrt(n);i++)
{
isprime=1;
if(n%i==0)
{
isprime=0;
break;
}
}
if(isprime==1)
printf( "\nPRIME
NUMBER" );
else
printf( "\nNOT
PRIME NUMBER" );
return
0;
}
|
Any number is input through the keyboard. Write a program to determine whether the number is a prime or not.
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