If p=125×243×16/405, how many digits are in p?  Select the correct option:
A) 1 B) 2 C) 3 D) 4 E) 5
p = 125 * 243 * 16 / 405   p= 5^3 * 3 * 9^2 * 4^2 / (5 * 9^2)   p= 5^2 * 3 * 4^2   p = 20^2 * 3 = 1200   answer 4
<result>D</result>
If p=125×243×16/405, how many digits are in p?