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Fix prime number checking logic in prime.c #210

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Fix prime number checking logic in prime.c #210

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4e1c6fc
Fix prime number checking logic in prime.c
Prateek-9801 Jan 31, 2026
18b6c68
Minor errors
Prateek-9801 Jan 31, 2026
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26 changes: 9 additions & 17 deletions prime.c
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Original file line number Diff line number Diff line change
Expand Up @@ -3,25 +3,17 @@
#include<stdio.h>
int main()
{
int num,i,count=1;
int num,i,f;
printf("Enter a number:");
scanf("%d",&num);
for (int i = 2; i*i < n; i++)
for (f = 2; f <= num/2 ; f++)
{
if (n%i==0)
{
isPrime = 0;
}
if (num%f == 0)
break;
}
if (isPrime)
{
printf ("The number %d is Prime\n", n);
}
else
{
printf ("The number %d is not Prime \n", n);
}

}
return 0;
if (f > num/2)
printf ("The number %d is Prime\n", num);
else
printf ("The number %d is not Prime \n", num);
return 0;
}