Archive for the ‘Mathematics’ Category:

Perfect number

{ Article added: 05/02/2009 }
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Categories : Mathematics
A perfect number is a positive integer that can be summed by its positive integral divisors and is half the sum of all of its positive divisors, including itself. Greek mathematicians identified the first four perfect numbers as 6, ...Read More »

One-time pad

{ Article added: 05/02/2009 }
A one-time pad is an encryption method utilizing an algorithm created with the use of randomly generated text used only once. First used in 1917, the strength of the cryptography is due to it being used only one time, ...Read More »