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

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- 1 decade agoFavorite 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;

9*10*10*10*10*10*10*10*10=900,000,000

Therefore,there are 900 million possibilities of SSN.

- BazzLv 41 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.

- Anonymous1 decade ago
10^9

- gp4rtsLv 71 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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