The Housekeeper and the Professor

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Across
  1. 5. the Professor's favorite number
  2. 8. the reason the Professor has a shortened memory
  3. 9. a number that is equal to the sum of its factors
  4. 10. a pair of numbers where the factors of each add up to each other
  5. 12. person suspected of hiding a relationship with the Professor
  6. 14. the baseball team that the Professor likes to watch
  7. 15. the Professor's favorite baseball player
Down
  1. 1. what the Professor used to be before the accident
  2. 2. name of the Housekeeper's son because of his flat head
  3. 3. where the Professor keeps his baseball cards and other important mementos
  4. 4. one of the questions the Professor asks the Housekeeper everyday
  5. 6. how long the Professor's memory lasts
  6. 7. the second question the Professor asks the Housekeeper
  7. 11. a number that is only divisible by 1 and itself
  8. 13. what the Professor sticks to his suit everyday