number

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Across
  1. 1. A number equal to 10^12.
  2. 3. A number equal to 10^3.
  3. 8. A number equal to 10^9.
  4. 9. The number that represents nothing.
  5. 11. The number of weeks in a pregnancy.
  6. 13. A prime number between 10 and 20.
  7. 16. The number often seen in the context of retirement age.
  8. 19. A number commonly associated with the quinceanera.
  9. 22. A number associated with a teenager.
  10. 24. The base of our decimal system.
  11. 25. A number of sides in a triangle.
  12. 27. A number associated with a century.
  13. 28. A number of days in a week.
  14. 31. The smallest positive integer.
  15. 34. The last single-digit number.
  16. 35. The number of days in a month for April, June, September, and November.
  17. 36. A number often associated with a period of twenty.
  18. 37. The number of ounces in a pound.
  19. 38. The number of months in a year.
Down
  1. 1. The first even prime number.
  2. 2. A number equal to 10^6.
  3. 4. The number of minutes in an hour.
  4. 5. The smallest perfect number.
  5. 6. The number of days in two weeks.
  6. 7. A number greater than 1 with no divisors except 1 and itself.
  7. 10. The number of seasons in a year.
  8. 12. The number of fingers in four hands.
  9. 14. Numbers divisible by 2.
  10. 15. The number considered unlucky in some cultures.
  11. 17. The number of states in the United States.
  12. 18. The number before one hundred.
  13. 20. One more than ten.
  14. 21. A group of twelve items.
  15. 23. A number of years associated with adulthood.
  16. 26. Numbers that are not divisible by 2.
  17. 29. The number of legs on a spider.
  18. 30. A number with more than two divisors.
  19. 32. The number of years often associated with senior citizens.
  20. 33. The number of fingers on a hand.