Posted by: OcRam August 21, 2008
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What are the largest and smallest 5-digit numbers that satisfy the following conditions?
Note: I don't care either it is calculation problem or programming. I just know it uses knowledge of basic mathematics.
- 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.