Found a factor? Post it here. Or forever fold your crease. - Page 82

legendarymudkip · 2015-01-16, 22:41

M252713 has a factor: 27595919843984963446046340023
k = 13 × 19 × 557 × 1621 × 3010541 × 81321913

Finally got something from all the P-1 I've been running on small numbers.

storflyt32 · 2015-01-17, 17:00

I guess lycorn meant to say

k= 995576409772070696797653 =3 × 3 × 3 × 883 × 41759003807393594933

on the previous page.

lycorn · 2015-01-18, 02:04

Yep, you´re right. Sorry about the typo.

legendarymudkip · 2015-01-21, 19:56

M442579 has a factor: 167564299150354202092313

A very rough k, 189304394413600964 = 2*2*47326098603400241.

lycorn · 2015-01-21, 23:39

Wow!
ECM, for sure...

LaurV · 2015-01-22, 02:28

Quote:

Originally Posted by lycorn

Wow!
ECM, for sure...

That's extremely easy ECM hit, 47326098603400241-9 factors as 2^3*7^2*11*29*101*1259*1289*2309

lycorn · 2015-01-22, 08:31

Yes, but out of reach for TF/P-1.

VictordeHolland · 2015-01-22, 10:55

I got two 100bit+ factors today with P-1 in the M1,50x,xxx range

P-1 found a factor in stage #1, B1=10000000.
UID: VictordeHollander/PC3770K, M1502201 has a factor: 9961858164484318845045819049537753539391 (P-1, B1=10000000)
k= 3315754071686917677809367404740695 = 3 × 5 × 37 × 101 × 29641 × 208513 × 955607 × 2035669 × 4919891
40 digits 132.872 bits

P-1 found a factor in stage #2, B1=10000000, B2=200000000, E=12.
UID: VictordeHollander/PC3770K, M1506287 has a factor: 269397059377600248844073196596567 (P-1, B1=10000000, B2=200000000, E=12)
k = 89424213107329562309199109 = 853 × 55829 × 72551 × 1958681 × 13214147
33 digits 107.731 bits

legendarymudkip · 2015-01-22, 16:16

Quote:

Originally Posted by LaurV

That's extremely easy ECM hit, 47326098603400241-9 factors as 2^3*7^2*11*29*101*1259*1289*2309

I went slightly over the required bounds with B1=50k and B2=5M then :P

VictordeHolland · 2015-01-28, 14:16

Already a few days old, but didn't notice until today:

Code:

[Sat Jan 24 20:35:50 2015]
P-1 found a factor in stage #2, B1=10000000, B2=200000000, E=12.
UID: VictordeHollander/PCVICTOR, M1511119 has a factor: 5764460914072987547513 (P-1, B1=10000000, B2=200000000, E=12)

k = 1907348433205124 = 2^2 × 7^2 × 13 × 1277 × 586191769

minB2 586,191,769
found with B2=200,000,000 E=12

Brent-Suyama extention

??

PageFault · 2015-02-03, 01:47

Got another one today:

Code:

ECM found a factor in curve #151, stage #2
Sigma=7925104694545819, B1=11000000, B2=1100000000.
UID: ANONYMOUS, M25111 has a factor: 5427507816547664928563953328692570691308025921

k = 2^5 x 5 x 5153 x 7207 x 22171 x 17945173 x 45712910703677057947

2015-01-21, 23:39	#896
lycorn "GIMFS" Sep 2002 Oeiras, Portugal 62E₁₆ Posts	Wow! ECM, for sure... Last fiddled with by lycorn on 2015-01-21 at 23:40

2015-01-28, 14:16	#901
VictordeHolland "Victor de Hollander" Aug 2011 the Netherlands 10010011011₂ Posts	Already a few days old, but didn't notice until today: Code: [Sat Jan 24 20:35:50 2015] P-1 found a factor in stage #2, B1=10000000, B2=200000000, E=12. UID: VictordeHollander/PCVICTOR, M1511119 has a factor: 5764460914072987547513 (P-1, B1=10000000, B2=200000000, E=12) k = 1907348433205124 = 2^2 × 7^2 × 13 × 1277 × 586191769 minB2 586,191,769 found with B2=200,000,000 E=12 Brent-Suyama extention ??

2015-02-03, 01:47	#902
PageFault Aug 2002 Dawn of the Dead 353₈ Posts	Got another one today: Code: ECM found a factor in curve #151, stage #2 Sigma=7925104694545819, B1=11000000, B2=1100000000. UID: ANONYMOUS, M25111 has a factor: 5427507816547664928563953328692570691308025921 k = 2^5 x 5 x 5153 x 7207 x 22171 x 17945173 x 45712910703677057947

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2015-01-16, 22:41	#892
legendarymudkip Jun 2014 2³×3×5 Posts	M252713 has a factor: 27595919843984963446046340023 k = 13 × 19 × 557 × 1621 × 3010541 × 81321913 Finally got something from all the P-1 I've been running on small numbers.

2015-01-17, 17:00	#893
storflyt32 Feb 2013 503 Posts	I guess lycorn meant to say k= 995576409772070696797653 =3 × 3 × 3 × 883 × 41759003807393594933 on the previous page.

2015-01-18, 02:04	#894
lycorn "GIMFS" Sep 2002 Oeiras, Portugal 1582₁₀ Posts	Yep, you´re right. Sorry about the typo.

2015-01-21, 19:56	#895
legendarymudkip Jun 2014 170₈ Posts	M442579 has a factor: 167564299150354202092313 A very rough k, 189304394413600964 = 2247326098603400241.

2015-01-22, 08:31	#898
lycorn "GIMFS" Sep 2002 Oeiras, Portugal 62E₁₆ Posts	Yes, but out of reach for TF/P-1.

2015-01-22, 10:55	#899
VictordeHolland "Victor de Hollander" Aug 2011 the Netherlands 3²·131 Posts	I got two 100bit+ factors today with P-1 in the M1,50x,xxx range P-1 found a factor in stage #1, B1=10000000. UID: VictordeHollander/PC3770K, M1502201 has a factor: 9961858164484318845045819049537753539391 (P-1, B1=10000000) k= 3315754071686917677809367404740695 = 3 × 5 × 37 × 101 × 29641 × 208513 × 955607 × 2035669 × 4919891 40 digits 132.872 bits P-1 found a factor in stage #2, B1=10000000, B2=200000000, E=12. UID: VictordeHollander/PC3770K, M1506287 has a factor: 269397059377600248844073196596567 (P-1, B1=10000000, B2=200000000, E=12) k = 89424213107329562309199109 = 853 × 55829 × 72551 × 1958681 × 13214147 33 digits 107.731 bits