# Random Gift Card Numbers with Check Digit

I require 100,000 x 16 digit card numbers each random. The numbers should begin as 3965 - #### - #### -###0

#=random

Check digit

Akin to checksum. The algorithm used to arrive at the proper check digit is called the ‘Luhn Algorithm’, after IBM scientist Hans Peter Luhn, (patent no 2950048 computer for Verifying Numbers).

Card with an even number of digits, double every odd numbered digit and subtract 9, if the product is greater than 9. Add up all the even digits as well as the doubled-odd digits, and the result must be a multiple of 10 or it’s not a valid card.

Card with an odd number of digits, perform the same addition doubling the even numbered digits instead.

The bit about odd and even is a little confusing. The main point is that you don’t want to double the check digit, and this can be done by starting with the check digit, going backwards, and doubling every other digit.

Beceriler: C Programlama

İşveren Hakkında:
( 0 değerlendirme ) Ipswich, United Kingdom

Proje NO: #26547177

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Muhammadsamran

Hello Sir/ Ma’am A skilled full stack developer, I have rich experience in JAVA, C, C++, C# Python , ANDROID and ARDUINO. I am very confident with my skills and I'd like to help your business by doing my best. I am Daha Fazla

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TechPretty1

Hello SIr I have read project description. you need Random Gift Card Numbers with Check Digit, I can build this using C or C++ programming. And also I'm graduate in Computer Science and specialty in C , C ++ programm Daha Fazla

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mahdikayedi

hi sir, i have +10 years experience in c and .net development i can do your job in 1 day please let me know when you're free thanks

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Saimum01

dear sir i have already read your project. and i am very interesting in your project. i am an expert in c/c++ project. i have rich expereiences in long number porcess in c++. if you hire me you get a good result in sh Daha Fazla

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