Random Number

What Does Random Number Mean?

A random number is a number generated using a large set of numbers and a mathematical algorithm which gives equal probability to all numbers occurring in the specified distribution. Random numbers are most commonly produced with the help of a random number generator. Random numbers have important applications, especially in cryptography where they act as ingredients in encryption keys.


Techopedia Explains Random Number

One of the most important prerequisites of a random number is to be independent, as this helps in establishing no correlations between successive numbers. It must be ensured that the frequency of the occurrence of these random numbers should be approximately be the same. As a result, theoretically, it is not easy to generate a long random number.

Random numbers can be generated with the help of software and hardware. Computer-generated random numbers are at times called pseudorandom numbers. There are many methods such as the linear congruence method for generating pseudorandom numbers. Random numbers produced by hardware or physical phenomenon are considered truly random generated numbers.

Random numbers have wide uses in applications such as cryptography, statistical sampling, completely randomized design, computer simulation and any areas where unpredictable random numbers are desirable.


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Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…