check digit scheme: mod 10 or what?
 

below is the list of hypothetical student numbers, the last digit is the
check digit. What I'd like to know is the check digit scheme used. Mod 10
algorithm doesn't work. I tried Verhoeff algorithm but it's to complicated
for me. Here's the first 20 in the series... please help me. i've been trying
to figure this out since yesterday. trial and error is so frustrating
already. i'd appreciate also if someone can show me how to implement in vb

017012217014
017012217028
017012217031
017012217045
017012217059
017012217062
017012217076
017012217080
017012217093
017012217108
017012217111
017012217125
017012217139
017012217142
017012217156
017012217160
017012217173
017012217187
017012217190
017012217205

--
Best,
Markus

check digit scheme: mod 10 or what?
 

Hello Markus,

So far it looks like a Mod 11 scheme with weight 4 on 11th digit and
weight 8 on 10th digit.

It dont know such a system and I could not find it in the web.

Provide some more numbers with different digits for leftmost 9 digits.

Regards,
Bernd

check digit scheme: mod 10 or what?
 

hi Bernd P,

below are the additional numbers,
....
017012218000
017012218013
017012218027
017012218030
017012218044
....
017012219009
017012219012
017012219026
017012219030
....
017012220000
017012220014
017012220028
017012220031

--
Best,
Markus


"Bernd P" wrote:

Hello Markus,

So far it looks like a Mod 11 scheme with weight 4 on 11th digit and
weight 8 on 10th digit.

It dont know such a system and I could not find it in the web.

Provide some more numbers with different digits for leftmost 9 digits.

Regards,
Bernd