Getting old...

Well...I feel like and idiot. I started taking some College courses this fall and am having to take remedial math. Pre-Algebra. Fun. Any way a lot of the math I remember but it has been over 20 years since I have done any of this. Especially without a calculator. We had out first quiz tonight and I just stared at it for a few minutes. Does any body know what the prime factors for 8550 is? I don't. I spent 30 minutes on this one question. Guess I need to ask for help for the adding and subtracting. LOL.