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Lasts a year (Posted on 2011-10-24) Difficulty: 2 of 5
Every 8-digit number structured ABCXABCX, where A,B and C are not necessarily distinct, is divisible by 365 iff X equals either 5 or 0.


No Solution Yet Submitted by Ady TZIDON    
Rating: 3.6667 (3 votes)

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  Subject Author Date
SolutionPut another wayCharlie2011-10-25 09:09:40
re(2): Finishing the proofSteve Herman2011-10-25 00:41:24
re: Finishing the proofMath Man2011-10-24 16:35:10
SolutionFinishing the proofSteve Herman2011-10-24 10:48:52
SolutionSolutionMath Man2011-10-24 10:21:21
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