fond of a factor? Urn yourself to become remains - Page 29

flashjh · 2012-04-04, 03:14

Found a nice 'k' today:

M79943021
Factor = 2217770314776436337081
k = 2^2 * 5 * 227 * 3055273981
Digits = 22
Bits = 70.910

Another interesting k

M79943693
Factor = 6794411101274465993903
k = 43 × 1009 × 979440361
Digits = 22
Bits = 72.525

Dubslow · 2012-04-04, 04:37

Are those P-1 or TF?

cheesehead · 2012-04-04, 05:13

With k factors near 3 billion and 1 billion -- my guess would be TF

Dubslow · 2012-04-04, 05:20

Quote:

Originally Posted by cheesehead

With k factors near 3 billion and 1 billion -- my guess would be TF

I've had a k factor up at 346M with the B-S extension, and as we know Mr. Hallet has a ton of memory. So I just wanted to be sure, though I agree TF is more likely. (Also those expos are outside of his P-1 work size, if this or this are anything to go by.

)

cheesehead · 2012-04-04, 05:27

I'm willing to be amazed by being wrong. :-)

flashjh · 2012-04-04, 07:35

Quote:

Originally Posted by Dubslow

Are those P-1 or TF?

Yes, they're both TF. I wish they were P-1 since I still haven't seen a B-S factor.

Batalov · 2012-04-04, 22:00

Got my 100th factor for GPU72.
Now I need to overtake Greg before he employs the same strategem (which is too easy)

harlee · 2012-04-05, 13:04

P-1 found a factor in stage #2, B1=135000, B2=2733750, E=6.
M4421467 has a factor: 8546596152478901798249 (73 bits)

k=2^2 × 11 × 541 × 3,301 × 12,299,893

Dubslow · 2012-04-05, 19:36

I believe that's the first E=6 B-S factor I've seen. Nice going!

flashjh · 2012-04-06, 02:06

Found a nice stage-1 factor: 405845656468221226445605471

M50647693
bits: 88.391
digits: 27
k = 3 × 5 × 907 × 17959 × 55229 × 296909

Stef42 · 2012-04-07, 11:22

Found some factors while running some 50 random exponents at 98M from 65 to 67.

found 1 factor for M98071543 from 2^65 to 2^67 [mfaktc 0.18 barrett79_mul32]
M98071543 has a factor: 146536851648186392249 [TF:65:67:mfaktc 0.18 barrett79_mul32]

k = 2² × 83 × 2250275899

M98073133 has a factor: 55134581081542102081 [TF:65:67:mfaktc 0.18 barrett79_mul32]
found 1 factor for M98073133 from 2^65 to 2^67 [mfaktc 0.18 barrett79_mul32]

k = 2⁵ × 3² × 5 × 757 × 257861

M98071789 has a factor: 101395775139293311447 [TF:65:67:mfaktc 0.18 barrett79_mul32]
found 1 factor for M98071789 from 2^65 to 2^67 [mfaktc 0.18 barrett79_mul32]

k = 3 × 7 × 11² × 203442227

M98174059 has a factor: 126812702311349093167 [TF:65:67:mfaktc 0.18 barrett79_mul32]
found 1 factor for M98174059 from 2^65 to 2^67 [mfaktc 0.18 barrett79_mul32]

k = 3 × 10949 × 19662571

2012-04-04, 03:14	#309
flashjh "Jerry" Nov 2011 Vancouver, WA 1,123 Posts	Found a nice 'k' today: M79943021 Factor = 2217770314776436337081 k = 2^2 * 5 * 227 * 3055273981 Digits = 22 Bits = 70.910 Another interesting k M79943693 Factor = 6794411101274465993903 k = 43 × 1009 × 979440361 Digits = 22 Bits = 72.525 Last fiddled with by flashjh on 2012-04-04 at 03:27

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2012-04-04, 04:37	#310
Dubslow Basketry That Evening! "Bunslow the Bold" Jun 2011 40<A<43 -89<O<-88 7221₁₀ Posts	Are those P-1 or TF?

2012-04-04, 05:13	#311
cheesehead "Richard B. Woods" Aug 2002 Wisconsin USA 7692₁₀ Posts	With k factors near 3 billion and 1 billion -- my guess would be TF

2012-04-04, 05:27	#313
cheesehead "Richard B. Woods" Aug 2002 Wisconsin USA 2²×3×641 Posts	I'm willing to be amazed by being wrong. :-)

2012-04-04, 22:00	#315
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 2·47·101 Posts	Got my 100th factor for GPU72. Now I need to overtake Greg before he employs the same strategem (which is too easy)

2012-04-05, 13:04	#316
harlee Sep 2006 Odenton, MD, USA 2²×41 Posts	P-1 found a factor in stage #2, B1=135000, B2=2733750, E=6. M4421467 has a factor: 8546596152478901798249 (73 bits) k=2^2 × 11 × 541 × 3,301 × 12,299,893

2012-04-05, 19:36	#317
Dubslow Basketry That Evening! "Bunslow the Bold" Jun 2011 40<A<43 -89<O<-88 3×29×83 Posts	I believe that's the first E=6 B-S factor I've seen. Nice going!

2012-04-06, 02:06	#318
flashjh "Jerry" Nov 2011 Vancouver, WA 1,123 Posts	Found a nice stage-1 factor: 405845656468221226445605471 M50647693 bits: 88.391 digits: 27 k = 3 × 5 × 907 × 17959 × 55229 × 296909

2012-04-07, 11:22	#319
Stef42 Feb 2012 the Netherlands 2×29 Posts	Found some factors while running some 50 random exponents at 98M from 65 to 67. found 1 factor for M98071543 from 2^65 to 2^67 [mfaktc 0.18 barrett79_mul32] M98071543 has a factor: 146536851648186392249 [TF:65:67:mfaktc 0.18 barrett79_mul32] k = 2² × 83 × 2250275899 M98073133 has a factor: 55134581081542102081 [TF:65:67:mfaktc 0.18 barrett79_mul32] found 1 factor for M98073133 from 2^65 to 2^67 [mfaktc 0.18 barrett79_mul32] k = 2⁵ × 3² × 5 × 757 × 257861 M98071789 has a factor: 101395775139293311447 [TF:65:67:mfaktc 0.18 barrett79_mul32] found 1 factor for M98071789 from 2^65 to 2^67 [mfaktc 0.18 barrett79_mul32] k = 3 × 7 × 11² × 203442227 M98174059 has a factor: 126812702311349093167 [TF:65:67:mfaktc 0.18 barrett79_mul32] found 1 factor for M98174059 from 2^65 to 2^67 [mfaktc 0.18 barrett79_mul32] k = 3 × 10949 × 19662571