[2,3,2,5,3,2,7,5,3,2,11,7,5,3,2,13,11,7,5,3,2,17, 13,11,7,5,3,2,19,17,13,11,7,5,3,2,23,19,17,13,11, 7,5,3,2,29,23,19,17,13,11,7,5,3,2,31,29,23,19,17, 13,11,7,5,3,2,37,31,29,23,19,17,13,11,7,5,3,2,41, 37,31,29]