is 2237959-1
has 71,633 decimal digits
takes 0.001 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-L49D8B1E6F5D7C302double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26530.659572.3077%100,000,0002,000,000,0001.655814.1072%32.315386.4149%31.4149%
PrimeNet2400.000055.0000%2,60065,0000.000013.9160%0.000068.9160%13.9160%
GPU722440.000059.0909%4,500100,0000.00019.8877%0.000168.9786%9.8877%
Difference+21+30.6595+13.2168%+99,995,500+1,999,900,000+1.6558+4.2195%+32.3152+17.4363%+17.4363%

Known prime factors (1 factor, 132.6 bits, 0.05571032% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
237959806979361657570897465737231622898931988140132.56816956268971914718448676814737473660
22 × 5 × 7 × 4133 × 305029 × 5537267 × 21237217 × 816963503
21,237,217816,963,5032019-04-068.011e+110.52550.6764

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2000-10-07T00:00:00ANONYMOUSv4_computers100,0004,000,000---0.003--2.829%
2001-06-30T00:00:00ANONYMOUSv4_computers100,00010,000,000---0.005--3.397%
2002-06-02T00:00:00ANONYMOUSv4_computers32,7683,276,800---0.002--2.024%
2002-08-03T00:00:00ANONYMOUSv4_computers65,5366,553,600---0.003--2.837%
2003-02-24T00:00:00ANONYMOUSv4_computers131,07213,107,200---0.007--3.780%
2003-10-31T00:00:00ANONYMOUSv4_computers262,14426,214,400---0.014--4.841%
2011-01-31T22:39:00Jocelyn LaroucheManual testing2,000,0002,000,000---0.016--3.179%
2011-07-24T13:12:00Jocelyn LaroucheManual testing2,137,2592,137,259---0.017--3.251%
2012-02-26T15:17:00Jocelyn LaroucheManual testing2,671,5742,671,574---0.022--3.503%
2013-10-11T19:53:00David Campeaui5-2500k2,695,00078,155,000---0.055--7.598%
2014-12-15T11:28:00thelegendarymudkipi5-4670k10,000,000250,000,000---0.188--9.879%
2016-05-13T23:04:27mognutsManual testing2,66166,525---4.99597e-5--0.196%
2019-04-06T06:31:28Alexhome100,000,0002,000,000,0001240132.5681.6560.0033.31214.107%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-11-17T00:00:00ANONYMOUSv4_computers252253--0.003--
2000-04-19T00:00:00ANONYMOUSv4_computers?254--0.010--
2001-02-18T00:00:00ANONYMOUSv4_computers?256--0.040--
2002-04-14T00:00:00ANONYMOUSv4_computers?257--0.081--
2016-02-23T16:28:04Mark RoseManual testing257258--0.081--
2009-01-01T23:39:00Sturle Sundefizir.ifi258259--0.161--
2009-02-06T19:55:00Sturle Sundefoster.ifi259260--0.323--
2013-07-20T15:36:00lycornasteroid260261--0.645--
2015-07-24T06:20:00snme2pm1Manual testing261262--1.291--
2016-01-12T14:31:12Gordon SpenceManual testing262263--4.125--
2016-01-12T14:31:12Gordon SpenceManual testing263264--8.251--
2018-03-09T10:57:42Gordon SpenceManual testing264265--15.70--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,0002801.671
250,00025,000,0003279.76


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2001-09-16T00:00:00ANONYMOUSv4_computers49D8B1E6F5D7C3020.001


PRP results:
dateuseridcompidcofactorsres64PRP
2019-04-07T01:57:46artorollofourth
8069793616575708974657372316228989319881
5066EE66DEA3BC5Fno
2019-04-07T15:22:36matzetonibobuba
8069793616575708974657372316228989319881
5066EE66DEA3BC5Fno
2019-04-11T01:53:35Chang Chia-Tcheexbpc13
8069793616575708974657372316228989319881
5066EE66DEA3BC5Fno


P-1 factor-bounds graph:
B1 = 100,000,000, B2 = 2,000,000,000 (stage 2)
B1 = 100,000,000 (stage 1)
B1 = 10,000,000, B2 = 250,000,000 (stage 2)
B1 = 10,000,000 (stage 1)
B1 = 2,695,000, B2 = 78,155,000 (stage 2)
B1 = 2,695,000 (stage 1)
B1 = 2,671,574 (stage 1)
B1 = 2,137,259 (stage 1)
B1 = 2,000,000 (stage 1)
B1 = 262,144, B2 = 26,214,400 (stage 2)
B1 = 131,072, B2 = 13,107,200 (stage 2)
B1 = 100,000, B2 = 10,000,000 (stage 2)
B1 = 65,536, B2 = 6,553,600 (stage 2)
B1 = 100,000, B2 = 4,000,000 (stage 2)
B1 = 262,144 (stage 1)
B1 = 32,768, B2 = 3,276,800 (stage 2)
B1 = 131,072 (stage 1)
B1 = 100,000 (stage 1)
B1 = 65,536 (stage 1)
B1 = 32,768 (stage 1)
B1 = 2,661, B2 = 66,525 (stage 2)
B1 = 2,661 (stage 1)
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TF factor-bounds graph:
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Last modified: 2019-04-11T01:53:35+00:00