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(x!+1)/(x+1) = prime number (Posted on 2010-07-30) Difficulty: 3 of 5
For a positive integer x drawn at random between 1 and 20000 inclusively, determine the probability that (x!+1)/(x+1) is a prime number.

No Solution Yet Submitted by K Sengupta    
Rating: 2.3333 (3 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re: search is overSteve Herman2010-08-01 13:03:06
search is overDaniel2010-07-31 20:29:48
re: mathematica solutions (so far)Steve Herman2010-07-31 09:34:00
re: mathematica solutions (so far)Justin2010-07-31 03:57:51
mathematica solutions (so far)Daniel2010-07-30 20:06:11
Wilson Quotient ValuesPaul2010-07-30 18:55:34
re(2): computer can't go that highCharlie2010-07-30 18:17:40
re: computer can't go that highJustin2010-07-30 17:55:26
Some Thoughtscomputer can't go that highCharlie2010-07-30 12:44:52
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