What is the least number of digits (including repetitions) needed to express 10^600 in decimal notation?  Select the correct option
A) a) 4 B) b) 601 C) c) 101 D) d) 1000 E) e) 1001
10^n is a decimal number with a 1 followed by n zeros.   So 10^600 will include 600 0's + 1 digit for 1 = 601   So the answer is b) 601
<result>B</result>
What is the least number of digits (including repetitions) needed to express 10^600 in decimal notation?