Davi's work

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Across
  1. 4. 15,20,30 these are the multiples of what number.
  2. 5. I am the product of 2 and 4.
  3. 6. There are only three factors in me what am I.
  4. 7. What is the product of 6 and 3.
Down
  1. 1. The second multiple of the number 6 is.
  2. 2. I am a prime number between 10 and fifteen.
  3. 3. I am twice the number eight and I am a multiple of three.
  4. 4. I'm a factor of 16 that is between 1 and 5.