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Eleven Exponent Divides Evenly (Posted on 2009-08-01) Difficulty: 2 of 5
M is a 2003-digit positive decimal integer having the form: 12.....21
where, the first digit is 1, followed by the digit 2 repeated precisely 2001 times, and the last digit is 1.

Determine the highest power of 11 that evenly divides M.

See The Solution Submitted by K Sengupta    
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  Subject Author Date
Solutionre(2): Solution verification by computerCharlie2009-08-01 16:30:59
Solutionre: SolutionCharlie2009-08-01 16:25:37
SolutionDej Mar2009-08-01 15:00:11
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