How do you find the greatest common factor on the ti-84?

Answer 1

In this example, we will find the greatest common factor of 132 and 500:

Press MATH and scroll over to NUM on the top.

Scroll down and select option 9, "gcd(". (This stands for greatest common denominator.) Type the first number, followed by a comma, followed by the second number. Then type and ending parenthesis. In this example, you should have:

gcd(132,500)

Press ENTER. In this example, the answer should be 4.