[2,3,5,7,11,13,23,29,31,37,41,47,71,73,79,83,89, 97,107,109,113,131,139,149,151,157,167,173,181, 191,193,199,223,227,233,241,251,257,269,277,283, 293,311,317,337,353,359,367,379,397,401,409,419, 421]