[1,1,3,3,5,3,7,3,7,5,11,3,13,7,5,5,17,7,19,5,7,11, 23,3,25,13,19,7,29,5,31,15,11,17,13,7,37,19,13,5, 41,7,43,11,13,23,47,5,43,25,17,13,53,19,25,7,19, 29,59,5,61,31,7,17,13,11,67,17,23,13,71,7]