is 22748857-1
has 827,489 decimal digits
takes 0.212 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-LD04444C374DF09BBdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2665.372666.6667%2,700,0002,700,0000.30244.2999%5.675070.9665%8.2547%
PrimeNet2590.027962.7119%12,000220,0000.00262.8523%0.030665.5641%2.8523%
GPU722630.580665.0794%14,000240,0000.00291.7089%0.583666.7883%1.7089%
Difference+3+4.7920+1.5873%+2,686,000+2,460,000+0.2994+2.5910%+5.0914+4.1783%+4.1783%

Known prime factors (1 factor, 140.7 bits, 0.00511894% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
2748857228357482790486756404006647077061059855276743140.712415368065327673932117979667689263319
32 × 7 × 1319 × 2273 × 9643 × 162419 × 354751 × 1925909 × 2055133
1,925,9092,055,1332016-11-306.358e+100.21650.4390

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-11-16T00:00:00ANONYMOUSv4_computers2,048204,800---0.001--0.369%
2003-11-28T00:00:00Team Prime Ribv4_computers15,000225,000---0.003--1.090%
2010-12-21T01:09:00Jocelyn LaroucheManual testing20,00020,000---0.002--0.382%
2010-12-30T22:20:00Jocelyn LaroucheManual testing30,00030,000---0.003--0.518%
2011-01-21T23:30:00Jocelyn LaroucheManual testing50,00050,000---0.006--0.733%
2011-05-04T02:01:00James HeinrichWHS190,0004,655,000---0.049--4.134%
2016-11-30T22:48:47mikrMSI2,700,0002,700,00043140.7120.3020.4250.6054.300%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-02-23T16:29:20Mark RoseManual testing21260--0.056--
2009-01-27T20:10:00Sturle Sundegorky.ifi260261--0.056--
2012-04-06T19:27:00Grant McCrackenhome261262--0.112--
2013-01-14T12:31:00dbaughManual testing262263--0.357--
2015-04-21T09:20:00VictordeHollanderManual testing263264--0.714--
2015-04-21T09:20:00VictordeHollanderManual testing264265--1.359--
2016-02-04T08:53:27ramgeisManual testing265266--2.718--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,000181.870


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-07-12T00:00:00ANONYMOUSv4_computersD04444C374DF09BB0.212


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-20T11:55:44Oliver KruseGTX-1
2283574827904867564040066470770610598552767
D9EAA2F14B9C84__no
2017-12-05T16:55:51kkmrkkblmbrbkc4.xlarge
2283574827904867564040066470770610598552767
D9EAA2F14B9C84__no


P-1 factor-bounds graph:
B1 = 2,700,000 (stage 1)
B1 = 190,000, B2 = 4,655,000 (stage 2)
B1 = 190,000 (stage 1)
B1 = 50,000 (stage 1)
B1 = 30,000 (stage 1)
B1 = 15,000, B2 = 225,000 (stage 2)
B1 = 20,000 (stage 1)
B1 = 15,000 (stage 1)
B1 = 2,048, B2 = 204,800 (stage 2)
B1 = 2,048 (stage 1)
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TF factor-bounds graph:
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Last modified: 2017-12-05T16:55:51+00:00