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   DIR Return to: Number Theory
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       #Post#: 28--------------------------------------------------
       Glossary
   DIR By: Dragon Hellfire
       Date: March 13, 2019, 7:41 am
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       - Proper Divisor: A positive divisor of a number n not equal to
       n.
       Properties of Numbers
       - Amicable: Any two numbers whose divisors sum to one another.
       - Coprime: Any two numbers such that the only number that
       divides both of them is 1.
       - Fermat's: Numbers of form '2^(2^n)+1'
       - Perfect: A number which is equal to the sum of its proper
       divisors
       - Prime: A number which is only divisible by itself and 1.
       - Triangular: Any of the series of numbers (1, 3, 6, 10, 15,
       etc.) obtained by continued summation of the natural numbers 1,
       2, 3, 4, 5, etc.
       Properties of Prime Numbers
       - Mersenne: A prime number which is one less than a power of
       two.
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