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The digit is missing! (Posted on 2019-10-14) Difficulty: 2 of 5
Let number N be represented by a chain of 50 “ones”.
The 26th “1”, counting from the right, is replaced by a new digit, say “x”, causing N to become a multiple of 13.
Find x.

No Solution Yet Submitted by Danish Ahmed Khan    
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  Subject Author Date
SolutionNo SubjectAdy TZIDON2019-10-14 20:25:52
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