To continue the previous post..................the sig of 97...............................1, 3, 7, 9.....................any prime..........greater than 10............can ONLY end in one of four numbers.................1 out of 4.......again like 14i..........................................and another 13..............1/2..........the critical line.............1/2 as an exponent.......is a square root............the square root of 13..starts out like full circle.............3.60.....................................97 like 7 and 9......................and 9 is the last number in single digits, period........7 is the last single digit prime..........tons of sym...............