7 10001st Prime
By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13.
What is the 10 001st prime number?
#include <iostream>
#include <limits>
using namespace std;
void pause() { cin.ignore(numeric_limits<streamsize>::max(), '\n'); }
bool isPrime(int number)
{
for (int i = 2; i < number-1; i++)
{
if (number % i == 0)
return false;
}
return true;
}
int main()
{
int primCount = 1;
int potentialPrime = 3;
while (primCount < 10001)
{
if (isPrime(potentialPrime) == true)
{
primCount++;
if (primCount == 10001)
break;
potentialPrime++;
}
else
potentialPrime++;
}
cout << potentialPrime;
pause();
}
Solution: 104743
Last modified 3yr ago