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 Check your Mathematics - 6

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Posted on 08-21-08 2:27 PM     Reply [Subscribe]
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What are the largest and smallest 5-digit numbers that satisfy the following conditions?

  • Each digit of the number is a prime number.
  • Each successive pair of digits forms a 2-digit number that is NOT a prime number.
  • Each of the prime digits must appear at least once in the 5-digit number.

Note: I don't care either it is calculation problem or programming. I just know it uses knowledge of basic mathematics.
 
Posted on 08-21-08 4:09 PM     Reply [Subscribe]
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Parbatya is correct as usual.

The clue for solution is:
1. 3 should be the first digit otherwise we will get 2 digit numbers as prime (23, 53, 73)
2. With 3 in the beginning, 7 can not be 2nd digit as 37 is prime.


Rest you can add...
 
Posted on 08-21-08 8:07 PM     Reply [Subscribe]
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KHAI KE KHAI KE PYAAT MA TA!!!!
 


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