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Start as you wish (Posted on 2011-01-29) Difficulty: 4 of 5
For any k-digit number M there exist a number n such that the string of first k digits of 2^n equals M .

Prove it.

No Solution Yet Submitted by Ady TZIDON    
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re: Old-fogey logic Comment 3 of 3 |
(In reply to Old-fogey logic by Steve Herman)

Quite brilliant. Congratulations!

  Posted by broll on 2011-01-30 12:57:50
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