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12345678910
Across
  1. 2. (A number with more than 2 factors.)
  2. 5. (The number of prime numbers between 1 and 10.)
  3. 7. smallest two digit number.)
  4. 9. (The set of numbers that can be divided exactly into another number.)
  5. 10. (The fourth prime number.)
Down
  1. 1. (Not a prime number or a composite number.)
  2. 3. (The only even prime number.)
  3. 4. number which can only be divided exactly by itself and 1.)
  4. 6. the numbers in a multiplication table.)
  5. 8. multiple of eight.)