HP (Hewlett-Packard) F2215AA#ABA Calculator User Manual


 
Miscellaneous Programs and Equations 17-9
Program Listing:
Program Lines:
(In ALG mode)
Description
  This routine displays prime number P.
 
Checksum and length: 2CC5 6
  This routine adds 2 to P.
 
Checksum and length: EFB2 9
  This routine stores the input value for P.
 
 
 

  Tests for even input
  Increments P if input an even number.
 Stores 3 in test divisor, D
Checksum and length: EA89 47
  This routine tests P to see if it is prime.
  Finds the fractional part of P ÷ D.
  Tests for a remainder of zero (not prime).

  If the number is not prime, tries next possibility.
 
 

 > Tests to see whether all possible factors have been tried.
   If all factors have been tried, branches to the display
routine.
 
   Branches to test potential prime with new factor.
Checksum and length: C6B5 53