Problem: the largest 4 digit number exactly divisible by 88 is ?
Rationale: "largest 4 - digit number = 9999 88 ) 9999 ( 113 88 - - - - 119 88 - - - - 319 264 - - - 55 - - - required number = ( 9999 - 55 ) = 9944 . e )"
annotated_formula: square_area(const_pi)