is 2 79003523 - 1
has 23782431 decimal digits
takes 246.529 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-L54640CDBF2757F__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276193.712864.4737%21000004800000020.81714.9281%214.529966.2245%1.7508%
PrimeNet2716.051461.9718%340000160000005.39895.2388%11.450263.9641%1.9922%
GPU7227596.855364.0000%500000170000006.32993.7769%103.185265.3597%1.3597%
Difference+1+96.8575+0.4737%+1600000+31000000+14.4872+1.1512%+111.3447+0.8648%+0.8648%

Known prime factors (1 factor, 88.7 bits, 0.00011230% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
790035235092519574517655725064133772788.7193222969926618117856
25 × 3 × 149 × 293 × 281791 × 2729003
2020-02-2728179127290031,459,1361.87832.5949

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2014-10-13T18:55:00Earle Lowework-origpro12150001215000---5.498--1.798%
2020-02-27T10:54:48mikrNitron210000048000000122788.71920.82493.141.634.928%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--1.51882e-5--
2000-01-25T00:00:00ANONYMOUSv4_computers21254--3.03764e-5--
2004-02-07T00:00:00ANONYMOUSv4_computers21263--0.020--
2010-11-24T20:56:00Craig MeyersManual testing264265--0.047--
2010-11-29T18:49:00Marco FrühbeisWHS265266--0.095--
2011-02-03T11:51:00Donna NobleCCI_E4300266267--0.189--
2011-02-17T08:52:00Tom Duellv4_computers21271--6.051--
2011-04-14T00:00:00Tom Duellv4_computers21271--6.051--
2015-10-26T10:08:55Mark RoseManual testing271272--6.054--
2015-10-26T10:08:55Mark RoseManual testing272273--12.11--
2015-10-26T10:08:55Mark RoseManual testing273274--24.21--
2016-05-02T16:18:19monstManual testing274275--48.43--
2020-02-22T13:40:45mikrManual testing275276--96.86--


ECM factoring results:
No ECM results for M79003523


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2015-04-30T06:56:00Earle Lowework-origpro54640CDBF2757F__246.5


PRP results:
No PRP results for M79003523


P-1 factor-bounds graph:
B1 = 2100000, B2 = 48000000 (P-1 stage 2)
B1 = 2100000 (P-1 stage 1)
B1 = 1215000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2020-02-27T10:54:48+00:00