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Q:

# What are alphanumeric numbers?

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Alphanumeric, also called alphameric, is the set of letters of the alphabet and numeric characters from 0 through 9. It is a term used to describe any subset formed from this collection of symbols. Alphanumeric is also regarded as the combination of Latin letters and Arabic digits.

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The term alphanumeric does not include punctuation and mathematical symbols. It is commonly used as the required format in creating passwords and file names. The string of characters “aBc123” is alphanumeric, but “#s?34T” is not.

Alphanumeric characters in the POSIX/C locale consist of either 36 case-insensitive symbols (A-Z and 0-9) or 62 case-sensitive characters (A-Z, a-z and 0-9).

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## Related Questions

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The pattern 8 5 4 9 1 7 6 3 2 0 is an alphabetical pattern in which the numbers, when written out in letters, are listed in alphabetical order. The solution is found by listing the pattern as eight, five, four, nine, one, seven, six, three, two and zero.

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In math, zero is part of the set of whole numbers. The whole numbers include all of the natural numbers, or positive counting numbers, plus the number zero. The whole numbers do not include any of the negative numbers.

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There is no largest number because the set of real numbers is infinite. One of the largest numbers with a name is googolplex, which is 10 to the power of 10 to the power of 100.