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N Nine Nuance (Posted on 2016-01-29) Difficulty: 3 of 5
Determine the minimum value of a positive integer N > 2 such that:
the number 199...991, containing precisely N nines, is divisible by 1991.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
Solutionre:corrected answer onlyAdy TZIDON2016-01-29 15:38:17
re(2): possible solutionbroll2016-01-29 11:16:28
re: possible solutionCharlie2016-01-29 11:11:04
Solutioncomputer solutionCharlie2016-01-29 10:47:03
Some Thoughtspossible solutionbroll2016-01-29 09:30:19
SolutionAnswer onlyAdy TZIDON2016-01-29 09:24:59
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