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Long chain (Posted on 2015-04-10) Difficulty: 3 of 5
Create a chain of consecutive digits starting with 1 and following 9 by 0: 123456789012345...

How many digits are needed to obtain the 1st prime number?

  Submitted by Ady TZIDON    
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Solution: (Hide)
answer: 171

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Some Thoughtsre: lesson learnedAdy TZIDON2015-04-11 09:44:02
Solutionlesson learnedCharlie2015-04-11 08:32:42
Hints/Tipsre: Computer says... (spoiler)Ady TZIDON2015-04-11 07:14:14
Computer says... (spoiler)Harry2015-04-11 06:59:28
re(2): computer explorationDej Mar2015-04-11 00:23:31
Hints/Tipsre: computer explorationAdy TZIDON2015-04-10 23:50:31
Some Thoughtscomputer explorationCharlie2015-04-10 20:46:20
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