perplexus.info :: Just Math : How Many ?

How Many ? (Posted on 2004-01-02)

How many positive integers 'n' are there such that [(2)^n + 1] is divisible by 7 ?

See The Solution Submitted by Ravi Raja

Rating: 2.6667 (9 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Puzzle Solution	K Sengupta	2021-12-23 08:45:40
No Subject	K Sengupta	2008-02-07 05:14:03
re: la meme Janette mais autrement coifee!	mark hartman	2004-01-29 18:42:49
solution	mark hartman	2004-01-29 18:34:50
la meme Janette mais autrement coifee!	luminita	2004-01-08 09:56:07
Brute force	Dan Blume	2004-01-02 16:44:11
Solution	Richard	2004-01-02 10:51:26

Please log in:

Forums (0)
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:


perplexus dot info