test

for (int i = 1; i < num; ++i) {meetsCriteria[i] = true;}for (int i = 2; i < num / 2; ++i) {int j = i + i;while (j <= num) {meetsCriteria[j] = false;j += i;}}for (int i = 0; i < num; ++i) {if (meetsCriteria[i]) {Console.WriteLine(i + " meets criteria");}}try intelligent naming :for (int primeCandidate = 1; primeCandidate < num; ++primeCandidate){isPrime[primeCandidate] = true;}for (int factor = 2; factor < num / 2; ++factor) {int factorableNumber = factor + factor;while (factorableNumber <= num) {isPrime[factorableNumber] = false;factorableNumber += factor;}}for (int primeCandidate = 0; primeCandidate < num; ++primeCandidate){if (isPrime[primeCandidate]) {Console.WriteLine(primeCandidate + " is prime.");}}