Message Forum: Re: Perfect numbers

Re: Perfect numbers

Posted By: Wes, on host 204.215.203.160
Date: Tuesday, December 18, 2001, at 18:22:44
In Reply To: Re: Perfect numbers posted by Lucky Wizard on Tuesday, December 18, 2001, at 18:08:27:

> 1. Is it possible for the exponent in a Mersenne number to be prime without the Mersenne number itself being prime?

Very possible. There are only 39 known Mersenne primes, and like 99 quintbillion primes.

> 2. Do perfect numbers or very large prime numbers have any practical uses? I remember reading about practical uses for small primes, but I never did find anything about practical uses for large primes or perfect numbers.

Encription and stuff like that. Probably more stuff, too.

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Message:	> > 1. Is it possible for the exponent in a Mersenne number to be prime without the Mersenne number itself being prime? > > Very possible. There are only 39 known Mersenne primes, and like 99 quintbillion primes. > > > 2. Do perfect numbers or very large prime numbers have any practical uses? I remember reading about practical uses for small primes, but I never did find anything about practical uses for large primes or perfect numbers. > > Encription and stuff like that. Probably more stuff, too.
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