From here you can either download the prime factorization program for free onto your computer and then on to your calculator. (don’t worry we’ll walk you through it). Or you can use method 2 and type the code into your calculator by hand. After that, keep scrolling on this page for instructions on what the program does and how to use it.

Prime Factorization Program Code

Method 1 (Download)

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1. To download the program click the link below.

Download Program

2. Click <here> for a tutorial on how to get the program on to your calculator after you have downloaded the file.

3. Keep scrolling to see how the program works and how to use it (optional).

4. The program is currently stored in your calculator’s ram. Click <here> to see a tutorial on how to save the program permanently.

Method 2 (Type)

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1. See how to start a program on your calculator <here> (optional).

2. Begin typing in the code shown in the image or video shown below.

Do NOT individually type in the colons, or the “PROGRAM:EXAMPLE” name, the colons will show up automatically when you start a new line by pressing [enter]. The “PROGRAM:EXAMPLE” will already be at the top.

Having trouble finding the character or function you see in the code? See how to type any function/character/symbol on your TI-84 Plus>>.

*WARNING*: If you clear the ram on your calculator the program will be lost. To see how to save your work permanently click <here>.

How To Use The Prime Factorization Program Code

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First press the [prgm] and scroll to “PRIMEFCT” (or whatever you named your program) and then press [enter] [enter] to run the program. You will then be at the screen shown below.

From here, simply type in the number you want the program to find all the prime factors of. In this example I will find the prime factors of 169344.

Once you press [enter] the program will begin to generate a list of the prime factors from least to greatest. As you can see the first 6 factors of 169344 are 2,2,2,2,2 and 2. The program will produce the first 6 factors and then pause.

After you have finished writing down the first 6 factors of your number, simply press [enter] to get the rest.

Once you press enter, you will see the rest of your factors listed out on the screen, as seen above.

So, all the prime factors of 169344 are 2,2,2,2,2,2,2,3,3,3,7,7.

Some things to keep in mind: the program will only show the “enter to continue prompt” if the number has more than 6 factors. Also, if the number you enter has a very large prime factor, it may take the calculator a while to generate this factor, just wait until you see the word “done” to ensure all of your prime factors have been generated.

Any questions may be left in the comment section below, they will be answered within 24 hours.

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