SOLUTION: If p, r, and s are 3 different prime numbers greater than 2, and n= p x r x s then how many positive factors, including 1 and n, does n have?

Algebra ->  Customizable Word Problem Solvers  -> Numbers -> SOLUTION: If p, r, and s are 3 different prime numbers greater than 2, and n= p x r x s then how many positive factors, including 1 and n, does n have?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 200670: If p, r, and s are 3 different prime numbers greater than 2, and n= p x r x s
then how many positive factors, including 1 and n, does n have?

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
You have 3 prime factors. So let's count:
1,n = 2
p r s = 3 (total 5)
Now you need to add paired factors and know that r*p = p*r
pr, ps, rs = 3 (total 8)
One more prs makes 9