Question regarding a n/o. is a prime

Paul · 2015-05-09, 02:50

a while ago I was checking the progress of my search results and found a message saying that "M5 W1000A000A,00000000!" is a prime. Can anybody shed light on this message as I have no idea what M5 W1000A000A,00000000 refers to.?
Thank you all,
Paul

Xyzzy · 2015-05-09, 03:12

Quote:

Originally Posted by Paul

Can anybody shed light on this message as I have no idea what M5 W1000A000A,00000000 refers to.?

M5 info is here: http://mersennewiki.org/index.php/Li...ersenne_primes

Error code (00000000) info: http://www.mersenneforum.org/showpos...0&postcount=12

We think the other part (W1000A000A) is the software version identifier and the Res64 residue: http://www.mersenneforum.org/showthread.php?t=10668

Edit: Yep!

http://www.hoegge.dk/mersenne/resultspenultimate.txt

Quote:

Code:

M5 interim Wc1 residue 000000000000000E at iteration 3
M5 interim Wc1 residue 0000000000000008 at iteration 4
M5 interim Wc1 residue 0000000000000000 at iteration 5
M5 is prime! Wc1: 000A000A,00000000

Mini-Geek · 2015-05-09, 11:48

You tested the number 2^5-1=31. 31 is prime.

PrimeNet wouldn't have given you this number, since we already know that's prime (obviously). Most likely, you hit Advanced > Test and entered "5".

2015-05-09, 02:50	#1
Paul "Paul" May 2015 Blackball N.Z. 3 Posts	Question regarding a n/o. is a prime a while ago I was checking the progress of my search results and found a message saying that "M5 W1000A000A,00000000!" is a prime. Can anybody shed light on this message as I have no idea what M5 W1000A000A,00000000 refers to.? Thank you all, Paul

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Prime pages question	jasong	jasong	7	2013-03-09 12:10
A Silly Prime Question	davar55	Puzzles	76	2011-04-15 14:34
Twin Prime Question	Unregistered	Information & Answers	4	2010-09-08 13:00
Prime 95 Noob Question	Unregistered	Information & Answers	4	2009-09-12 14:01
Question on prime powers	JuanTutors	Math	2	2004-07-07 07:07

2015-05-09, 11:48	#3
Mini-Geek Account Deleted "Tim Sorbera" Aug 2006 San Antonio, TX USA 17×251 Posts	You tested the number 2^5-1=31. 31 is prime. PrimeNet wouldn't have given you this number, since we already know that's prime (obviously). Most likely, you hit Advanced > Test and entered "5".