is 2 103740997 - 1
has 31229152 decimal digits
takes 413.055 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual276147.521264.4737 %7630002294200011.38143.9701 %158.902565.8841 %
Target276147.521264.4737 %65000011000000038.14833.8577 %185.669565.8442 %
Difference---+113000-87058000-26.7669+0.1124%-26.7669+0.0399 %

Known prime factors (1 factor, 85.9 bits, 0.00008281% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
103740997726349226741290568692034872685.909350078198468292419
79 × 521 × 673 × 947 × 13345511
2021-05-109471334551175,5324.20297.8403

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-05-10MarkSdesktop-i776300022942000622685.90911.383.970%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-18EPFEPF_012632640.019
2010-08-24Torchwood InstitutePhenom95502642650.036
2012-05-01Torchwood InstituteOpt6128x4x42652660.072
2014-05-15ITSMasterStation2662670.144
2014-10-14g0bManual testing2672680.288
2014-10-14Taz-i7Taz-i72682690.576
2014-10-18andorra52692701.153
2014-10-22AK76Manual testing2702712.305
2015-01-08SMoffatManual testing2712724.610
2019-09-11Niels_Mache_NextcloudManual testing2722739.220
2019-09-11Niels_Mache_NextcloudManual testing27327418.44
2021-01-16Richard ThomasManual testing274276110.6


ECM factoring results:
No ECM results for M103740997


Lucas-Lehmer results:
No L-L results for M103740997


PRP results:
No PRP results for M103740997


CERT results:
No CERT results for M103740997


P-1 factor-bounds graph:
B1 = 763000, B2 = 22942000 (P-1 stage 2)
B1 = 763000 (P-1 stage 1)
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108
TF factor-bounds graph:
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266
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264
this exponent TF target: 76
TF double-checked to: 67
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Last modified: 2024-02-09T03:30:02+00:00