BPrime - finding the prime factors of a number using the TI 83/84

Introduction: The prime factors of a positive integer (numbers that can be written without a fractional or decimal component) are the prime numbers that divide into that integer exactly, without leaving a remainder. The process of finding these numbers is called integer factorization, or prime factorization.
This program BPrime was written by [Stephen Compall] and referenced by (navyfalcon) e-mail
Note: Click on "BPrime" to download the original program, then "right click" to extract the files and "F10" to load on "VTI".

Related Articles:- PRFactor Primes Prime

Outline:

Line 2. Clear

Line 4. input number

Line 9. √(number)

Line 14. prime number

Line 15. new number

Line 23. Disp all primes

Reference Cmds

Screenshots

Reference Links

prgmBPrime

Line	Command or Statement	Comments
1.	prgmBPrime
2.	ClrHome	Clear Screen
3.	Disp "PRIME FACTOR 0.9"
4.	Input "NUMBER=",Q	input number
5.	2->I
6.	2->S
7.	{1}->ιFAC	ιFAC = List FAC
8.	Lbl 1
9.	√(Q)->R	√(number)
10.	For(I,S,R)	For (variable,begin,end[,increment])
11.	Q/I->X
12.	If X = int(X):Then	int( (greatest integer) Note: For a given value, the result of int( is the same as the result of iPart(
13.	augment(ιFAC,{I})->ιFAC
14.	Disp I	prime number
15.	X->Q	new number
16.	I->S
17.	Goto 1
18.	End
19.	If I ≠ 2:I+1->I	increment I
20.	End
21.	Disp Q
22.	augment(ιFAC,{Q})ιFAC
23.	Pause ιFAC	Disp all primes

Reference Commands:

TI Basic Commands:

augment( listA, listB) Returns a list, which is list B appended to the end of list A

ClrHome clears home screen

Disp displays text or value specified

End Identifies end of For(, If-Then-Else, Repeat, or While loop.

For (variable,begin,end[,increment]) :commands :End :commands :Executes commands through End, incrementing variable from begin by increment until variable end.

If condition :Then :commands :End :commands: Executes commands from Then to End if condition = 1(true).

Goto goes to label specified. Goto requires a line label (Lbl) be implemented as a destination

Input prompts for value to store to variable. Requires user input through keypad.

Lbl creates a label of one or two characters

Pause [value] Displays value; suspends program execution until you press [ENTER]. Pause with value displays value on the current home screen. Value can be scrolled.

Screenshots:

Lbl 1	Lbl 1a	DispQ	DispQa

Reference:

Information or Links:

Using the TI-83 graphing calculator tutorial

General Info - Algebra 1 - Statistics 1 - Algebra 2 - Trigonometry - Statistics 2 - PreCalculus - Calculus

http://mathbits.com/mathbits/TISection/Openpage.htm

TI Calc.org TI-83 (Basic) Math Programs

Percent Solver - 48 Math Functions - Math Formulas - Fractions - Decimal to Fraction - Decimal Simplifier - Arithmetic Problem - Ratio Solver - GCD finder

http://www.ticalc.org/pub/83/basic/math/

TI-83 Guidebook

Getting Started has introduced you to basic TI.83 operation. This guidebook. describes in detail the features you used in Getting Started.

http://www.math.oregonstate.edu/home/programs/undergrad/TI_Manuals/ti83Guidebook.pdf

devhardware.com/forums/ti-83-84

TI 83/84, Programming forum discussing coding and everything related to the well-known TI-83/84 graphing calculators for math and science.

http://www.devhardware.com/forums/ti-83-84-102/

TI Calc.org TI-83 (Basic) Math Programs

Percent Solver - 48 Math Functions - Math Formulas - Fractions - Decimal to Fraction - Decimal Simplifier - Arithmetic Problem - Ratio Solver - GCD finder

http://www.ticalc.org/pub/83/basic/math/

Brief Users Guide for the TI-83 Plus

covers basic math, and all basic operations as performed on the TI-83 Plus calculator

http://www.angelfire.com/pro/fkizer/Instructions/tishrtusrguide83.htm

Graphing Calculator Tutorials

Graphing Calculator Help & Tutorials

http://itech.pjc.edu/falzone/handouts/ti83plus_ti84_help_summary.htm