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2 August, 00:28

A three-digit number between 100 and 200 is prime. The number, formed by the last two digits of it is also prime. The two last digits themselves are also prime! What is the 3-digit number? Make sure to find all possible values!

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  1. 2 August, 03:39
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    113 is one number. 131 is another

    137, 173

    I think that's all of them.

    You can check if you google 'list of primes'.

    Hold on i'm not sure about 113 and 131 Is number 1 a prime number? I dont think it is, So that leaves us with only 137 and 173.
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Home » Mathematics » A three-digit number between 100 and 200 is prime. The number, formed by the last two digits of it is also prime. The two last digits themselves are also prime! What is the 3-digit number? Make sure to find all possible values!
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