how many numbers can be made with a social security number?

5 Answers

  • 1 decade ago
    Favorite Answer

    A SSN has nine digits,but we can use 10 digits[0-9]

    Keep in mind that we can't use the digit zero at the front.

    Therefore, there are 9 possibilities for the first digit and 10-digits for the rest.

    This implies;


    Therefore,there are 900 million possibilities of SSN.

  • Bazz
    Lv 4
    1 decade ago

    An SS# has 9 digits between 0 and 9 (i.e. 10 possibilities for each).

    The number of possible social security numbers is then 10^9, i.e. a billion.

  • Anonymous
    1 decade ago


  • gp4rts
    Lv 7
    1 decade ago

    There are nine digits in a SSN, and if you allow all zeros, the number is 10^9 (one billion).

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  • 1 decade ago

    nine numbers. example: 666-66-6666

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