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## Re: PRP Top 50 has become PRP Top 100

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• PS: My personal gigantic bete noire is Phi(2521,9926), with 10072 digits, and N-1 347 digits short of BLS. As Gollum said, we hates it.... David
Message 1 of 9 , May 6 5:13 PM
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PS: My personal gigantic bete noire is Phi(2521,9926),
with 10072 digits, and N-1 347 digits short of BLS.
As Gollum said, we hates it.... David
• Guys, Primeform gives the following as PRP 6*k*(2^n - 1 - k ) + 2^n - 1, with n = 4497, k = 8939. digit number = 13400. A beginner in this business, I would
Message 2 of 9 , May 18 6:21 AM
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Guys,

Primeform gives the following as PRP

6*k*(2^n - 1 - k ) + 2^n - 1, with n = 4497, k = 8939.
digit number = 13400.

A beginner in this business, I would like confirmation of this result from
someone.

Thank you.

Peter Lesala.

-----Original Message-----
From: Henri LIFCHITZ <HLifchitz@...>
To: Primes List <PrimeNumbers@yahoogroups.com>
Date: Friday, April 20, 2001 10:42 PM
Subject: [PrimeNumbers] PRP Top 50 has become PRP Top 100

>Hello all,
>
>By popular demand, I have decided to extend the PRP Top 50 to a PRP Top
100.
>(see http://www.primes.fr.st or
http://ourworld.compuserve.com/homepages/hlifchitz/ )
>For convenience reasons, only the first 50 records will keep a specific
page.
>
>Please continue sending me new probable primes (but larger than 12000
digits).
>
>Happy hunting,
>
>Henri
>
>
>[Non-text portions of this message have been removed]
>
>
>Unsubscribe by an email to: primenumbers-unsubscribe@egroups.com
>The Prime Pages : http://www.primepages.org
>
>
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
• In a message dated 18/05/2001 14:29:21 GMT Daylight Time, ... Hi Peter, Something must be wrong with your expression as (if we do the substitutions for n and
Message 3 of 9 , May 18 12:48 PM
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In a message dated 18/05/2001 14:29:21 GMT Daylight Time,
mohales@... writes:

> Primeform gives the following as PRP
> 6*k*(2^n - 1 - k ) + 2^n - 1, with n = 4497, k = 8939.
> digit number = 13400.
> A beginner in this business, I would like confirmation of this result from
> someone.
> Thank you.
> Peter Lesala.

Hi Peter,
Something must be wrong with your expression as (if we do the substitutions
for n and k) PFGW says:-
6*8939*(2^4497-1-8939)+2^4497-1 has factors: 7
Want to double-check it?
Mike Oakes
• Hi Mike, There is an error in the value of n = 4497, the value should be n = 44497. Thanks for the quick response. Peter. ... From: Mikeoakes2@aol.com
Message 4 of 9 , May 20 2:17 AM
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Hi Mike,

There is an error in the value of n = 4497, the value should be n = 44497.

Thanks for the quick response.

Peter.
-----Original Message-----
From: Mikeoakes2@... <Mikeoakes2@...>
To: mohales@... <mohales@...>
Date: Friday, May 18, 2001 10:03 PM
Subject: Re: [PrimeNumbers] PRP Top 50 has become PRP Top 100

In a message dated 18/05/2001 14:29:21 GMT Daylight Time,
mohales@... writes:

> Primeform gives the following as PRP
> 6*k*(2^n - 1 - k ) + 2^n - 1, with n = 4497, k = 8939.
> digit number = 13400.
> A beginner in this business, I would like confirmation of this result from
> someone.
> Thank you.
> Peter Lesala.

Hi Peter,
Something must be wrong with your expression as (if we do the substitutions
for n and k) PFGW says:-
6*8939*(2^4497-1-8939)+2^4497-1 has factors: 7
Want to double-check it?
Mike Oakes
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