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A credit card number is a 16 digit number.

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Q: How many numbers does a creditcard number have?
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How many numbers does the creditcard have?

16, in four sets of four. Plus expiry dates, and security numbers at the back.


What is the number called that has 16 digits?

A creditcard


What is a real creditcard number?

There is no legitimate reason to know an arbitrary real credit card number.


What is next decimal number of the number 65?

There is no such thing as a "next" decimal number. Numbers are infinitely dense: that is, between any two numbers there are infinitely many numbers. Therefore, given any number claiming to be next after 65, there are infinitely many numbers between 65 and that number - The smallest of these has a better claim at being next. But there are infinitely many numbers between 65 and this number.There is no such thing as a "next" decimal number. Numbers are infinitely dense: that is, between any two numbers there are infinitely many numbers. Therefore, given any number claiming to be next after 65, there are infinitely many numbers between 65 and that number - The smallest of these has a better claim at being next. But there are infinitely many numbers between 65 and this number.There is no such thing as a "next" decimal number. Numbers are infinitely dense: that is, between any two numbers there are infinitely many numbers. Therefore, given any number claiming to be next after 65, there are infinitely many numbers between 65 and that number - The smallest of these has a better claim at being next. But there are infinitely many numbers between 65 and this number.There is no such thing as a "next" decimal number. Numbers are infinitely dense: that is, between any two numbers there are infinitely many numbers. Therefore, given any number claiming to be next after 65, there are infinitely many numbers between 65 and that number - The smallest of these has a better claim at being next. But there are infinitely many numbers between 65 and this number.


How many irrational numbers are there?

There are an infinite number of irrational numbers.