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DIVISIBILITY TEST

THERE IS A 50 DIGIT NUMBER,WHOSE 26th DIGIT IS 'X' & ALL REMAINING DIGITS ARE '1' , IF NUMBER IS DIVISIBLE BY 13 THEN FIND X. ANSWER: 3
Question asked by: HARSHKUMAR

Asked on: 01 Nov 2009

That sounds like a pretty tricky question... no idea of the answer but I'm sure one of the maths experts here will be able to help :)
By: knowitall
Replied at: 01 Nov 2009
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test  divisibility  

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