8 numeric plus one alphanumeric would be 10**8 * 36 = 36 followed by 8 zeros =
3.6 billion (American billion, not old UK billion).
EINs ("SSNs for companies") are 9 digits also. Do they have their own "space"
or do they potentially duplicate SSNs? I don't know. They are written
differently but that is of course a detail: 12-3456789.
Charles
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf
Of Ken Smith
Sent: Tuesday, April 21, 2020 10:39 AM
To: [email protected]
Subject: Re: SSN values (was Here we go again)
9 characters with 10 possible values = 10 to the 9th = 999,999,999 aka = 1
billion.
Allow one position to be alphanumeric adds what? Does position matter?
Thought 10 to the 36th plus 10 to the 8th??
But if allow all alphanumeric = 36 to the 9th = ?
=Ken
On Tue, Apr 21, 2020 at 1:03 PM Joe Monk <[email protected]> wrote:
> 9 digits = 999,999,999. There afe only 350,000,000 in the USA.
>
> Joe
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