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Identical Digit Determination (Posted on 2014-11-13) Difficulty: 3 of 5
I am thinking of a 100-digit number divisible by 21649, of which, all the digits are identical, except the units digit. What is the units digit?

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
Solutionanswer- from my smatphoneAdy TZIDON2014-11-13 08:01:12
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