Prime Number Generator - HP 33s User Manual

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Prime Number Generator

This program accepts any positive integer greater than 3. If the number is a prime
number (not evenly divisible by integers other than itself and 1), then the program
returns the input value. If the input is not a prime number, then the program returns
the first prime number larger than the input.
The program identifies non–prime numbers by exhaustively trying all possible
factors. If a number is not prime, the program adds 2 (assuring that the value is still
odd) and tests to see if it has found a prime. This process continues until a prime
number is found.
17–6
Miscellaneous Programs and Equations
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Retains P ; prompts for I .
Retains 0.56 in I ; prompts for N.
Stores 24 in N ; prompts for B .
Retains 5750 in B ; calculates F ,
the future balance. Again, the
sign is negative, indicating that
you must, pay out this money.
Sets FIX 4 display format.