void runEratosthenesSieve(int upperBound) {
	int upperBoundSquareRoot = (int)sqrt((double)upperBound);
	bool *isComposite = new bool[upperBound + 1];
	memset(isComposite, 0, sizeof(bool) * (upperBound + 1));
	for (int m = 2; m <= upperBoundSquareRoot; m++) {
		if (!isComposite[m]) {
			cout << m << " ";
			for (int k = m * m; k <= upperBound; k += m)
				isComposite[k] = true;
		}
	}
	for (int m = upperBoundSquareRoot; m <= upperBound; m++)
		if (!isComposite[m])
			cout << m << " ";
	delete[] isComposite;
}