Norwood School Problem Of The Day
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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