perplexus.info :: Just Math : Point to 2013

Point to 2013 (Posted on 2013-01-09)

Determine the minimum value of a positive integer N such that the 2nd, 3rd, 4th and 5th digits in order immediately following the decimal point (reading left to right) in the base ten expansion of √N is 2013.

*** For an extra challenge, solve this puzzle without using a computer program.

Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Solution: (Hide)

N = 4532 is the sought answer, as √(4532) ~= 67.32013071882734.
For an explanation, refer to the solution submitted by Charlie in this location.

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

Subject	Author	Date
re: No Subject	Charlie	2013-01-10 11:49:58
re(2): No Subject - wrong key -revisit	brianjn	2013-01-09 22:04:42
re: No Subject - wrong key	brianjn	2013-01-09 19:01:48
No Subject	brianjn	2013-01-09 18:58:40
re(2): With computer	Jer	2013-01-09 13:40:49
re: With computer	Ady TZIDON	2013-01-09 13:30:43
With computer	Charlie	2013-01-09 12:48:13

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