Grade 8 Test Puzzle

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Across
  1. 3. The language computers speak
  2. 5. Modular arithmetic is also known as _______ arithmetic
  3. 7. The number 101 represents this prime number
  4. 10. ____ numbers have an odd number of factors
  5. 11. The number is neither prime nor ________
  6. 12. Two numbers have that have the same remainder when divided by a number are?
  7. 13. Modular Arithmetic deals with ____
  8. 14. A number is divisible by 9 if the _____ of its digits is divisible by 9.
  9. 15. This principle guarantees that if you have 367 people, at least two will share a birthday.
  10. 18. LCM stands for Lowest common ________
  11. 19. After division, you are left with a _________ and a remainder.
  12. 20. In the hairy twins problem, the population of Coimbatore are the ______
Down
  1. 1. A base system that counts upto 16
  2. 2. To show that, by PGP, at least two students in RAKS have the same initials. The pigeons in this case will be the _____
  3. 4. A number is ______ if the remainder is 0 ?
  4. 6. Numbers used in Encryption :)
  5. 8. Process of securing data with large prime numbers
  6. 9. Base System used for everyday counting?
  7. 10. The value of 167 mod 8
  8. 16. A two digit palindrome prime
  9. 17. In pigeonhole principle, there are Pigeons and ____