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Math Help - Probability/Number Theory question

  1. #1
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    Probability/Number Theory question

    Give a random social security number, what are the chances that it's a prime number?

    I've been researching how social security numbers are given but this still seems fairly difficult to figure out. Any hints or suggestions are greatly appreciated!
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  2. #2
    Senior Member Shanks's Avatar
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    The distribution of Prime number may offer you a estimate of the probability.
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  3. #3
    Super Member Bacterius's Avatar
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    Do you have a large source of social numbers to study ? About one hundred thousand would already be a good estimate ...

    Otherwise, maybe this could help : SSN
    Structure paragraph details about everything you need, I think.
    For example, you could work out that :
    the first part is issued on geographical region -> study probability that one american picked at random is in one state
    the second part is issued in a weird order -> look at the order on the website
    the third part is issued in a linear order -> no problems here
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  4. #4
    MHF Contributor chisigma's Avatar
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    Essential : how many decimal figures does have a 'social security number'?...

    Kind regards

    \chi \sigma
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