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

Home > Numbers
DIY prime magic (Posted on 2012-01-13) Difficulty: 4 of 5
In a 4x4 magic square all rows, columns and the two main diagonals are distinct 4-digit prime numbers when read in either direction.

Create such a square.

Bonus (d4): same for order-5 magic square and 5-digit primes.

Based on L. E. Card,Patterns in Primes, JRM 1:2, 1968, pp .93-99,

See The Solution Submitted by Ady TZIDON    
No Rating

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re(4): From the computer -semi-spoilerbrianjn2012-01-21 20:39:19
re(3): From the computer -semi-spoilerCharlie2012-01-21 11:02:43
re(2): From the computer -semi-spoilerbrianjn2012-01-20 18:38:42
re: From the computer -semi-spoilerbrianjn2012-01-19 08:11:29
Solution and Listing 4x4brianjn2012-01-14 20:06:09
Hints/Tipsre(2): From the computer -semi-spoilerAdy TZIDON2012-01-14 16:09:02
re(3): From the computer -semi-spoilerCharlie2012-01-14 11:31:56
re(2): From the computer -semi-spoilerbrianjn2012-01-14 03:21:16
Questionre: From the computer -semi-spoilerCharlie2012-01-13 23:33:57
From the computer -semi-spoilerbrianjn2012-01-13 19:03:16
Please log in:
Remember me:
Sign up! | Forgot password

Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (6)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Copyright © 2002 - 2019 by Animus Pactum Consulting. All rights reserved. Privacy Information