list of prime code example

Example 1: first prime numbers

#include
using namespace std;
bool Is_Prime(long long x){
	if(x%2==0)return false;
	for(int i=3;i*i<=x;i+=2)
		if(x%i==0)return false;
	return true;
}
int main(){
	//first n prime numbers
	int n;
	cin>>n;
	int i=1;
	while(n--){
		while(!Is_Prime(++i));
		cout<

#include
using namespace std;
bool Is_Prime(long long x){
	if(x%2==0)return false;
	for(int i=3;i*i<=x;i+=2)
		if(x%i==0)return false;
	return true;
}
int main(){
	//primes less than n
	int n;
	cin>>n;
	int primes=0,i=1;
	while(primes++