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kenmacd | 5 months ago

+11 and +4 seem check-digit-y

From the limited dataset it looks the last digit comes from:

last digit = (<sum of previous the digits> + 2) mod 7

discuss

order

Aloisius|5 months ago

It is a check digit, but it's just: n % 7.

So ticket 98494660 has citation #984,946,605

Ticket 98494661 will have citation #984,946,616

(The example of the pattern mistakenly starts with an citation number #984,946,606 which they said does not exist, rather than #984,946,605 which is the one shown in the image)