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Forum: YAFU 2021-11-24, 18:22
Replies: 296
Views: 24,323
Posted By Stargate38
Strange error (0xc0000005) when using Studio Kamada poly

When I try to factor 78888_142 (from Studio Kamada's near-repdigit tables), I get this crash:

Faulting application name: yafu.exe, version: 0.0.0.0, time stamp: 0x611c3335
Faulting module name:...
Forum: Miscellaneous Math 2021-11-16, 16:37
Replies: 5
Views: 674
Posted By Stargate38
Unhappy Someone please answer this...

Sorry for bumping a 9 year old thread, but I really need to know where to get FastECPP.
Forum: Lounge 2021-11-15, 16:21
Replies: 1,808
RIP
Views: 188,518
Posted By Stargate38
No he shouldn't. It wasn't the father's fault. It...

No he shouldn't. It wasn't the father's fault. It was whoever trampled him.
Forum: Aliquot Sequences 2021-10-30, 17:09
Replies: 7
Views: 417
Posted By Stargate38
Which sequences did they run? Any chance of...

Which sequences did they run? Any chance of getting a txt file with all the sequence starters in it?
Forum: MattcAnderson 2021-10-08, 20:42
Replies: 3
Views: 171
Posted By Stargate38
It's half of 42, the answer to the Ultimate...

It's half of 42, the answer to the Ultimate Question of Life, the Universe, and Everything (from The Hitchhiker's Guide To The Galaxy). Also, it's the number of 0s in the decimal expansion of 1...
Forum: Lone Mersenne Hunters 2021-09-27, 22:23
Replies: 1,985
Views: 270,671
Posted By Stargate38
M1960050767 has a factor: 2681764646543406705689...

M1960050767 has a factor: 2681764646543406705689 [TF:68:72:mfaktc 0.21 barrett76_mul32_gs]

k=2^2*11^2*349*4049977
Forum: Puzzles 2021-09-27, 16:17
Replies: 2
Views: 588
Posted By Stargate38
In terms of smaller numbers, there's...

In terms of smaller numbers, there's M1347826279*M1552958761 (I TF'd both of them to make sure there were no small factors <10^21), but there's also some larger examples, such as...
Forum: YAFU 2021-09-24, 21:50
Replies: 296
Views: 24,323
Posted By Stargate38
I've had that happen too. It must be a bug in...

I've had that happen too. It must be a bug in YAFU, as it doesn't happen in other command line software.
Forum: YAFU 2021-09-02, 18:12
Replies: 296
Views: 24,323
Posted By Stargate38
I'm using the most recent YAFU 2.x executable...

I'm using the most recent YAFU 2.x executable (from BSquared's GitHub), with internal poly selection. Brian Gladman's solution didn't work completely (still getting "error (line 1128):...
Forum: YAFU 2021-09-02, 15:59
Replies: 296
Views: 24,323
Posted By Stargate38
I can't get CUDA Poly selection to work. ...

I can't get CUDA Poly selection to work.

searching leading coefficients from 8942 to 9192
using GPU 0 (NVIDIA GeForce GTX 1650)
selected card has CUDA arch 7.5
using GPU 0 (NVIDIA GeForce GTX...
Forum: Factoring 2021-08-29, 16:19
Replies: 17
Views: 1,883
Posted By Stargate38
C117 -8/9 3: P33*P38*P47 (Line 41). ECM details...

C117 -8/9 3: P33*P38*P47 (Line 41). ECM details posted to DB.
Forum: Factoring 2021-08-18, 21:15
Replies: 459
Views: 32,536
Posted By Stargate38
Any chance you could send me a PDF of that? I...

Any chance you could send me a PDF of that? I tried the "Download PDF" button, but it said it wasn't downloadable. I want a local copy in case the uploaded copy goes down.
Forum: MattcAnderson 2021-08-15, 17:30
Replies: 4
Views: 389
Posted By Stargate38
It only took me 3.3110 seconds with YAFU 2.03 to...

It only took me 3.3110 seconds with YAFU 2.03 to find the P22. Found it on the 8th B1=50k curve (t20.59).
Forum: Miscellaneous Math 2021-07-18, 17:07
Replies: 7
Views: 749
Posted By Stargate38
It is. Pari/gp: ...

It is. Pari/gp:

Mod(2,3945487217704212192966311)^28326058902171529
%2 = Mod(1, 3945487217704212192966311)
Forum: FactorDB 2021-06-28, 17:36
Replies: 15
Views: 3,368
Posted By Stargate38
I hope that last paragraph was sarcastic....

I hope that last paragraph was sarcastic. Besides, we don't even know if the Mersenne Forum (or FactorDB, for that matter) will still be around in 2041. Anything - good or bad - could happen between...
Forum: FactorDB 2021-06-12, 14:42
Replies: 15
Views: 3,368
Posted By Stargate38
Actually, cmd put a bunch of numbers on there,...

Actually, cmd put a bunch of numbers on there, too. I've found quite a few from those years. Also, some of the users that have been banned indefinitely might be taking revenge as well (i.e. Samuel),...
Forum: Factoring 2021-06-10, 22:46
Replies: 459
Views: 32,536
Posted By Stargate38
Is the C93 from line 99 booked, or not? Just...

Is the C93 from line 99 booked, or not? Just curious. I ECMed it to t31 (no factors), but I didn't want to run SIQS on it if someone else had it reserved.

EDIT: I went ahead and did it, since it...
Forum: FactorDB 2021-06-10, 17:42
Replies: 19
Views: 10,436
Posted By Stargate38
I use those "Greatest Prime Factor" sequences...

I use those "Greatest Prime Factor" sequences (mostly GPF^3+1 and GPF^3-1, but I've also run the q^2-1 sequences of all factored RSA numbers) to see if they ever end in a cycle, so we can't get rid...
Forum: FactorDB 2021-06-10, 17:30
Replies: 15
Views: 3,368
Posted By Stargate38
You should only add them as you factor them. In...

You should only add them as you factor them. In other words, don't add a number unless you want to factor it, or you want someone else to factor it, if there's anyone willing to do so. Numbers <10^69...
Forum: Factoring 2021-06-07, 22:06
Replies: 459
Views: 32,536
Posted By Stargate38
C122 from line 105 factored:...

C122 from line 105 factored: http://www.factordb.com/index.php?id=1100000002598678181

Reported the factors to the larger number and didn't find any GCD collisions.
Forum: Factoring 2021-06-06, 17:05
Replies: 459
Views: 32,536
Posted By Stargate38
ECM has about 46 minutes left until t40, and then...

ECM has about 46 minutes left until t40, and then I'll run GNFS on the C122.
Forum: Factoring 2021-06-06, 16:31
Replies: 459
Views: 32,536
Posted By Stargate38
Reserving C122 from line 105 (9, 8) for ECM and...

Reserving C122 from line 105 (9, 8) for ECM and NFS. What's the SNFS difficulty for that one?
Forum: Factoring 2021-06-06, 15:33
Replies: 459
Views: 32,536
Posted By Stargate38
Can someone please post the full list of numbers,...

Can someone please post the full list of numbers, along with reservations? I would like to try one of the smaller ones (SNFS difficulty <140), if there are any unreserved.
Forum: Aliquot Sequences 2021-06-03, 17:20
Replies: 6
Views: 1,234
Posted By Stargate38
Maybe a later term will be the cycle's start. We...

Maybe a later term will be the cycle's start. We don't know if that'll happen yet, but the later terms aren't untouchable. Other sequences (i.e. 10000018198 and 31657014970784) merge with 276.
Forum: FactorDB 2021-06-01, 23:20
Replies: 164
Views: 51,927
Posted By Stargate38
I updated to Windows 10 2004, and now Primo won't...

I updated to Windows 10 2004, and now Primo won't run. I get "Gtk-WARNING **: (IP Address): cannot open display:". Anyone know how to fix that?

EDIT: I tried something suggested on SuperUser, but...
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