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 of 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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Home » Mathematics » 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 of the first and last digits.