Luhn algorithm: Difference between revisions

Revision as of 16:18, 26 September 2023

Revision as of 09:59, 9 October 2023

Line 31:

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! Multipliers

| 1

| 2

| 1

Line 41 ⟶ 40:

| 1

| 2

| 1

|-

!

Line 55:

|-

!

| style="background: #FFA;" | '''1814'''

| 7

| style="background: #FFA;" | '''18'''

| 9

| style="background: #FFA;" | '''418'''

| 72

| style="background: #FFA;" | '''614'''

| 93

| style="background: #FFA;" | '''1618'''

| 78

| style="background: #FFA;" | '''214'''

| 71

|-

! Sum digits

|'''95''' (1+84)

|7

|'''9''' (1+8)

|9

|'''49''' (1+8)

|72

|'''65''' (1+4)

|93

|'''79''' (1+68)

|78

|'''25''' (1+4)

|71

|}

The sum of the resulting digits is 6756.

The check digit is equal to <math>10 - (6756\operatorname{mod} 10) = 34</math>.

This makes the full account number read 7992739871379927398714.

=== Example for validating check digit ===