Respuesta :

  • The numbers can be:
  1. 23
  2. 79
  3. 27
  4. 39
  5. 29
  6. 37
  7. 32
  8. 97
  9. 72
  10. 93
  11. 92
  12. 73
  • Prime numbers are 23, 79, 29, 37, 97, 73

So you can make 6 prime numbers.

Answer:

6

Hope you could get an idea from here.

Doubt clarification - use comment section.

arpitaryan045

Answer:

Hey mate!

Step-by-step explanation:

Lets take two places _ _

Now first position is filled in 4 ways (can use 2 3 7 9) that implies 4C1

then second position is filled in 3 ways since for first position we used a digit

and the condition is that not to repeat the digits, so it is done in 3C1 ways.

so the answer is 4*3 or (4C1*3C1)=12;

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