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How to prove that it does not exist a natural number having the

  • Thread starter Mark J.
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How to prove that it does not exist a natural number having the property that the permutation of the first digit with the last one produces a new number being 5 times bigger compared to the original one

Regards
 

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  • #2
Ray Vickson
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How to prove that it does not exist a natural number having the property that the permutation of the first digit with the last one produces a new number being 5 times bigger compared to the original one

Regards
Does "5 times bigger" mean that one number is 5 times the size of the other, or does it mean that one is 6 times the other (so the amount by which is is bigger is 5 times)?

RGV
 
  • #3
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no problem just figured it out.
thx
 
  • #4
Ray Vickson
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no problem just figured it out.
thx
So, what was the answer to the question I asked?

RGV
 
  • #5
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that one number is 5 times the size of the other
 

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