perplexus.info :: Numbers : Magic constant

Magic constant (Posted on 2005-02-23)

In a magic NxN square, numbers from 1 to N² are set so the numbers in each row, column, or major diagonal, have the same sum: the "magic constant".

What is the value of this constant, as a function of N?

Submitted by e.g.

Rating: 1.7500 (4 votes)

Solution: (Hide)

N(N²+1)/2, for N=1 (dumb case!) or N≥3. For N=2, there is no possible magic square.

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

Subject	Author	Date
Brass Knuckles	JamesYawn	2024-08-10 10:54:42
Magic show in los angeles	CodyDunning	2023-12-30 05:57:38
7 prc brass	CodyDunning	2023-06-08 09:21:05
No Subject	CodyDunning	2023-05-25 04:23:15
Puzzle Thoughts	K Sengupta	2023-03-25 02:12:03
Solution	Praneeth	2007-08-14 01:50:17
re(3): Spoiler	Richard	2005-02-25 17:04:07
re(2): Spoiler	Ken Haley	2005-02-25 04:43:32
re: Spoiler	Richard	2005-02-23 15:50:47
Spoiler	Steve Herman	2005-02-23 15:37:47

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