Prime Number Matrices [br][br]1) Rank - # of Independent Columns [br][br]2) matrix 1 and matrix 3 tend to be similer ; move sliders[br][br]3) matrix 5 and matrix 2 are part of the answer in matrix 1 and matrix 3[br][br]4) Compare matrices - Top right corners differ by 1: see a = 9; t = 11 - see rref solutions