You cant factor on the ti-84. however the ti-89 does do this but its almost easier to just do it in your head. Plus on the ti-89 the way you enter it in there is a very high risk for error.
Chat with our AI personalities
You get 5.6 It tells me that 15 is not a factor of 84.
-2x+7x=5x. Factor out the x. -2+7 I hope you know how to use a calculator. :D
It hardly seems necessary. Prime numbers only have two factors, one and themselves.
CALCULATOR
A scientific calculator.