Luhn algorithm check digit generator
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ABCDEFGHIJKLMNOPQRSTUVWXYZAAABACADAEAFAGAHAIAJAKALAMANAOAPAQ
1
prefixmantissacard 1–1516output123456789101112131415
dgs01
dgs02
dgs03
dgs04
dgs05
dgs06
dgs07
dgs08
dgs09
dgs10
dgs11
dgs12
dgs13
dgs14
dgs15
sumsum9
luhncheck
2
990001123456789
990001123456789
8
9900011234567898
18900012264106148189900012264165896255870
3
990001987654321
990001987654321
8
9900019876543218
18900011881461046229900019856146226255870
4
990001129874582
990001129874582
8
9900011298745828
18900012218814410849900012298541846255870
5
990001987349871
990001987349871
3
9900019873498713
18900011881438916729900019853897727769380
6
990001987349873
990001987349873
9
9900019873498739
18900011881438916769900019853897768172990
7
990001265473811
990001265473811
8
9900012654738118
18900014610414316129900014614537125246860
8
990001113253252
990001113253252
3
9900011132532523
189000121621034549900012162134544742350
9
990001117635471
990001117635471
9
9900011176354719
189000121146658729900012156658726154970
10
990001486382234
990001486382234
5
9900014863822345
1890001881231624389900018833724386558570
11
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