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Program: FACTOR
FACTOR
- Finds all factors of a number.
- Finds the prime factorization of a number.
Useful for:
- SAT
- ACT
- Basic Math
- Algebra 1
- Algebra 2
Example 1
Q: Find the positive factors of 22.
Solution: Run FACTOR. How?
Choose '2' to find
all factors.
Enter 22 for the
number.
The factors will
appear two at a
time, as pairs of
numbers that
multiply to 22.
Press ENTER to see more factors. Keep pressing ENTER until the program says 'Done'. **If the list is too long, the numbers may scroll off the top of the screen!** That is why the numbers appear two at a time - so that you can write them down incase the list is too long.
Interpretation: The factors of 22 are: 1, 2, 11, and 22.
*Tip: Use FACTOR to determine if a number is prime. If the program reports only 1 and the number itself before saying 'Done', then the number is prime.
See Example 1
See Example 2