prime numbers in c
#include<stdio.h>
main() {
int n, i, count=0;
printf("Enter Number");
scanf("%d",&n);
for ( i = 1; i<= n; i++) {
if (n % i == 1) {
count++;
}
}
if( count == 2) {
printf("Prime Number");
}
else {
printf("Not A Prime Number");
}
}prime number c program
int isPrime(int n) {
for (int i = 2; i < n; i++) if (n % i == 0) return 0;
return 1;
}c program to check prime number
//program to find prime number or not using c programming
#include<stdio.h>
#include<conio.h>
// program starts from here after main() function
void main(){
int n;
int i,count =0;
// count is incremented when the loop is true.
printf("Enter the number\n");
scanf("%d",&n);
for (i=1; i<=n; i++){
if(n%i==0){
count++;
}
}
// for the prime number the no of count is 2
// number is divided by 1 or itself(given number) so count ==2
if(count ==2){
printf("%d is prime number.\n",n);
}
// for the composite number the number is divided by more than 2 number.
else{
printf("%d is not prime number\n",n);
}
getch();
}prime number c
#include <stdio.h>
int main()
{
int i, num, p = 0;
printf("Please enter a number: \n");
scanf("%d", &num);
for(i=1; i<=num; i++)
{
if(num%i==0)
{
p++;
}
}
if(p==2)
{
printf("Entered number is %d "\
"and it is a prime number.",num);
}
else
{
printf("Entered number is %d "\
"and it is not a prime number.",num);
}
}prime number c
#include<stdio.h>
int main()
{
int num,PrimeCount=0,i,flag,prime=1;
printf("\n enter the number:");
scanf("%d",&num);
while(num!=PrimeCount)
{
flag=0;
prime++;
for(i=2;i<=(prime/2);i++)
{
if(prime%i==0)
flag=1;
}
if(flag==0)
{
PrimeCount++;
}
}
printf("%d prime number is: %d",num,prime);
return 0;
}Copyright © 2021 Codeinu
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