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Pieces of eight (Posted on 2015-07-15) Difficulty: 2 of 5
Consider a product P=8*(888...888), i.e. 8 times a number represented by a chain of k eights.

For what value of k the sum of P's digits is exactly 1000?

No Solution Yet Submitted by Ady TZIDON    
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  Subject Author Date
Solutionsome computer aidCharlie2015-07-15 10:46:46
analytical solutionDaniel2015-07-15 10:36:48
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