1. Card Validation Code Visa Credit
2. Visa Credit Card Validation
3. Card Validation Code Visa Credit Cards
4. Reference

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Feb 15, 2021 The valid Visa Card number must satisfy the following conditions: It should be 13 or 16 digits long, new cards have 16 digits and old cards have 13 digits. It should be starts with 4. If the cards have 13 digits the next twelve digits should be any number between 0-9. The tool could generate many Valid fake Visa credit card numbers, The vast majority of Visa debit and credit card numbers start with 4 and is 16-digit long. However, a few Visa account ranges using a 13-digit format, The credit card number must pass the Luhn Algorithm Check.

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Given a long number containing digits of a credit card number; the task is to find whether the credit card number is valid or not with a program.

For checking a credit card is valid or not, the following are the validations we have to be sure for declaring the result.

Card Validation Code Visa Credit

A credit card’s number must have 13 to 16 digits, it must start with the following digits.

Visa Credit Card Validation

• All the visa cards start from 4
• All the master cards start from 5
• 37 is the starting for American express cards
• All the discover cards start from 6

Steps to check whether the credit card is valid or not −

Step 1 − Starting from the right to left we have to double each the digit, if the result of doubling the number is one digit then leave it as it is, else add up the two digit to get an one digit number. (like 22 = 2+2= 4)

Step 2 − Starting from right to left of the card number add all the digits at the odd places.

Step 3 − Add all the single digit number obtained from Step 1.

Step 4 − Add up the results from Step 2 and Step 3.

Step 5 − If the result is divisible by 10 then the card number is valid else the number is not valid.

Example

Approach we are using to solve the problem −

We will be using Luhn check or the mod 10 check, for the digit 4440967484181607.

Card Validation Code Visa Credit Cards

Algorithm

Example

Output

• Related Questions & Answers

As an e-commerce website developer, do you have to work with a lot of payment gateways?

While working with a number of payment gateways, testing always forms a crucial part, right from initially setting up the system to the continual testing of the checkout process. At this stage, developers need to work with test credit cards to run the code through the hoops and ensure the interface works well.

Reference

Explore our test payment card generator platform that will help you generate credit cards from MasterCard, Visa, UnionPay, Maestro, American Express, JCB and many more for testing and verification purpose. The test card generated here is 100% valid card number. Generated using a mathematical formula, it is then validated using Luhn algorithm (MOD 10).