All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars
 perplexus dot info

 Sum Of The Digits (Posted on 2004-01-27)
Find sum of digits of:(1999)^1999.
[The final answer should be a single digit number, for example, (2)^16 = 65536 and the sum of its digits will be given by (6 + 5 + 5 + 3 + 6 = 25, which again will be reduced to 2 + 5 = 7].

 See The Solution Submitted by Ravi Raja Rating: 2.1667 (6 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
 super easy | Comment 1 of 13
it is surely 1 ( one.)
1999= 1 mod 9
which yields 1 in any power.

ady
 Posted by Ady TZIDON on 2004-01-27 07:46:37
Please log in:
 Login: Password: Remember me: Sign up! | Forgot password

 Search: Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (0)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2018 by Animus Pactum Consulting. All rights reserved. Privacy Information