IEEE Weekly Puzzle #31 – Number of Digits

16 February 2015 Comments Off on IEEE Weekly Puzzle #31 – Number of Digits

You are asked to calculate 2^2015 and 5^2015 using a computer, and then to write down your results on a piece of paper. If you spend 1 second writing each digit of the results, how much time will it take to write down both results?

The Prize for This Question: Rubik’s Race

Send your answer to by 5:30 p.m. on February 24, or visit to submit your answer online, and get a chance to win the prize!

This question was prepared by Emrehan Halıcı, president of the Turkey Intelligence Foundation, for Bilkent IEEE.