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Digit Anagram (Posted on 2019-01-24) Difficulty: 4 of 5
Let n be a positive integer such that 2n-1 is a digit anagram of n (in its decimal representation). An example of such a pair would be n=37, 2n-1=73.

Show that if n's least significant digit is 3, n must also contain an 8.

No Solution Yet Submitted by Danish Ahmed Khan    
Rating: 5.0000 (1 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Questionre: some examples-- FORCE A QUESTIONAdy TZIDON2019-01-26 03:33:33
SolutionProofMath Man2019-01-24 15:23:50
Some Thoughtssome examples--for what they're worthCharlie2019-01-24 10:27:13
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