Factoring database - Page 133

RichD · 2012-12-11, 17:26

Quote:

Originally Posted by wblipp

How do you tell this?

If a number is FF (and belongs to a sequence), then the More information arrow will show an aliquot sequence association. Like this recent number from sequence 4788.

P.S. Then click the green arrow after "More information."

RichD · 2012-12-13, 03:42

Quote:

Originally Posted by firejuggler

a few minutes ago there was 72 000 P95 , now it is at 112 000 prime of 95 digits long

Grrr! the prp95 digit bandit is at it again.....

cmd · 2012-12-27, 02:20

|\/|. (. ___ |).
^^^ ^^^

Andi_HB · 2013-01-07, 20:20

Code:

Checking the smallest number with status unknown <19400 digits

There are no more unknown numbers below <19400 digits - maybe it can expand to 19500 digits? :)

kar_bon · 2013-01-08, 09:41

Quote:

Originally Posted by Andi_HB

Code:

Checking the smallest number with status unknown <19400 digits

There are no more unknown numbers below <19400 digits - maybe it can expand to 19500 digits? :)

Use this instead.

rcv · 2013-01-13, 02:53

I downloaded the Primo input file for this 2489-digit PRP. Both Primo and another program confirm the number is composite, with Primo reporting "The candidate is not a Lucas strong pseudoprime for (P=1, Q=3)."

Is there a way to kick factordb into running another primality test? I presume this isn't exceptionally rare, since the Status Page reports some 19000+ "probable primes that failed primality proof or had a factor". Thanks!

Batalov · 2013-01-13, 04:11

It is composite by a simple N+1 test. It is also trivially composite in base 7 or 11.
There are plenty of PRPs by one-sided tests in a single base.

I guess it is indeed a question to Markus.

In fact, it has a factor 2855137952289193586798729541499

Stargate38 · 2013-01-27, 17:20

I'm having a problem. Why is the Status page not loading past the "Distribution of numbers by type" graph?

YuL · 2013-01-28, 10:39

Quote:

Originally Posted by Stargate38

I'm having a problem. [...]

Same here, the status page is broken, can't access the composite-numbers-without-factors list and can't access to found factors and submitted certificates

sean · 2013-01-30, 21:12

In the last couple of days a large number of small composites has been dumped into the database (not by me). I spent some time trying to clear most of them, but for some reason there are a few C19 that the workers don't seem to be clearing.

yoyo · 2013-01-30, 21:16

I'm also working on these small composites.

2012-12-27, 02:20	#1455
cmd "(^r'°:.:)^n;e'e" Nov 2008 ;t:.:;^ 3³×37 Posts	strange messages \|\/\|. (. ___ \|). ^^^ ^^^ Attached Thumbnails

2013-01-07, 20:20	#1456
Andi_HB Mar 2007 Germany 2³·3·11 Posts	Code: Checking the smallest number with status unknown <19400 digits There are no more unknown numbers below <19400 digits - maybe it can expand to 19500 digits? :)

2013-01-13, 02:53	#1458
rcv Dec 2011 11×13 Posts	I downloaded the Primo input file for this 2489-digit PRP. Both Primo and another program confirm the number is composite, with Primo reporting "The candidate is not a Lucas strong pseudoprime for (P=1, Q=3)." Is there a way to kick factordb into running another primality test? I presume this isn't exceptionally rare, since the Status Page reports some 19000+ "probable primes that failed primality proof or had a factor". Thanks! Last fiddled with by rcv on 2013-01-13 at 02:54

2013-01-13, 04:11	#1459
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 2·47·101 Posts	It is composite by a simple N+1 test. It is also trivially composite in base 7 or 11. There are plenty of PRPs by one-sided tests in a single base. I guess it is indeed a question to Markus. In fact, it has a factor 2855137952289193586798729541499 Last fiddled with by Batalov on 2013-01-13 at 04:31

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2013-01-27, 17:20	#1460
Stargate38 "Daniel Jackson" May 2011 14285714285714285714 1010011000₂ Posts	I'm having a problem. Why is the Status page not loading past the "Distribution of numbers by type" graph?

2013-01-30, 21:12	#1462
sean Aug 2004 New Zealand 223 Posts	In the last couple of days a large number of small composites has been dumped into the database (not by me). I spent some time trying to clear most of them, but for some reason there are a few C19 that the workers don't seem to be clearing.

2013-01-30, 21:16	#1463
yoyo Oct 2006 Berlin, Germany 2×311 Posts	I'm also working on these small composites.