rendered paste body/* * primos.h * Flariut~ *//* * name: EsPrimo * @param (unsigned long long) * @return (bool)(true == es primo) */bool EsPrimo(unsigned long long n){ const unsigned int primes55[] = {2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71, 73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179, 181,191,193,197,199,211,223,227,229,233,239,241,251,257}; for(unsigned int i=0;i<55;i++){ if(!(n%primes55[i])){ if(n == primes55[i]) return true; else return false; } } unsigned long maxtest = (unsigned long)sqrt(n); for(unsigned int i=259; i<maxtest; i+=2){ if(!(n%i)) return false; } return true;}