Wednesday, December 5, 2012

Secret Number

Hannah gives clues about her six-digit secret number:
  • clue 1- It is the same number if you read it from right to left.
  • clue 2- The number is a multiple of 9.
  • clue 3- Cross off the first and last digits. The only prime factor of the remaining four digit number is 11.
What is Hannah's six digit number?

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