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

Home > Numbers
2^(10n) (Posted on 2015-04-15) Difficulty: 2 of 5
210 = 1024
220 = 1048576
Note that raising 2 to each of the first two multiples of 10 results in a number whose first digit is 1.

Find the smallest multiple of 10 where 2 raising to that power results in a number that does not begin with 1.

  Submitted by Jer    
Rating: 2.0000 (2 votes)
Solution: (Hide)
The smallest multiple of 10 is 300.

2300 > 2*1090

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionPuzzle Solution: Easy WayK Sengupta2022-06-16 00:39:24
re(4): worked outCharlie2015-04-17 14:09:41
Hints/Tipsre(3): worked outAdy TZIDON2015-04-17 01:48:20
re(2): worked outCharlie2015-04-16 08:06:54
Some Thoughtsre: worked outAdy TZIDON2015-04-15 09:35:29
Solutionworked outCharlie2015-04-15 09:01:19
Answer onlyAdy TZIDON2015-04-15 08:05:28
Answer onlyAdy TZIDON2015-04-15 08:05:28
SolutionSolution (spoiler)broll2015-04-15 08:05:15
 Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (1)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (10)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:

blackjack

flooble's webmaster puzzle

Copyright © 2002 - 2024 by Animus Pactum Consulting. All rights reserved. Privacy Information