Reference Guide to Turbo Pascal Programs

ArFcnTab - Function - Constructs a TABle of values of the six ARithmetic FunCtioNs ... Algorithm - When the program begins execution, it first constructs a list of the primes not exceeding 109/2 , by sieving. These primes are used for trial division. The factorizations are determined simultaneously for all 20 numbers (or all 500 numbers, in the case of printing). [via]

http://math.berkeley.edu/~ribet/Math115/clint...