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Update prime.c #49

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51 changes: 40 additions & 11 deletions Loops/prime.c
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Original file line number Diff line number Diff line change
@@ -1,19 +1,48 @@
//Find if no is prime or not

#include<stdio.h>
int main(){
int f=0,i,num;
printf("Enter number\n");
int f=0,i,num,flash=0;
printf("Enter a whole number\n");
scanf("%d",&num);
for(i=2;i<=num/2;i++){
if(num%i==0){
f=1;
if(num==0)
{
printf("Zero is neither prime nor composite\n");
}
else if(num==1)
{
printf("One is neither prime nor composite\n");
}
else if(num==2)
{
printf("The entered number is a prime number ");
}
else if(num==3)
{
printf("The entered number is a prime number");
}
else
{
for(i=2;i<=num/2;i++){
if((num%i)==0)
{
flash=0;
break;
}
else
{
flash=1;
}



}
if(flash==0)
{
printf("The entered number is composite");
}
if(f==0){
printf("Prime no");
else
{
printf("The entered number is prime");
}
else{
printf("Not prime");
}
}
}