What is the greatest positive integer x such that 5^x is a factor of 125^10?
Choose the correct choice
A) 5	B) 9	C) 10	D) 20	E) 30
125^10 = (5^3)^10 = 5^30   ANSW30R:30
<result>E</result>
What is the greatest positive integer x such that 5^x is a factor of 125^10?