is 2 103822471 - 1
has 31253678 decimal digits
takes 413.379 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
Actual276147.405464.4737 %7630002296000011.38703.9711 %158.792465.8845 %
Target276147.405464.4737 %65000011000000038.14833.8580 %185.553765.8443 %
Difference---+113000-87040000-26.7613+0.1130%-26.7613+0.0401 %

Known prime factors (1 factor, 83.0 bits, 0.00007997% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10382247198201760917547778740414072583.02247293114858317993
3 × 7 × 271 × 347 × 29759 × 804751
2021-05-142975980475118,8680.41560.4728

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-05-14MarkSdesktop-i776300022960000622583.02211.393.971%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-17Dalos Leedalosdesk2632640.019
2010-08-24Mr-Plonklinux-i7-9202642650.036
2012-05-02Torchwood InstituteOpt6128x4x42652660.072
2014-05-09Shawnhome2662670.144
2014-07-10Chih-Wei Huang2672680.288
2014-07-16Preben SManual testing2682690.576
2014-07-21NoWhereMani7-3930K2692701.152
2014-10-23workerthreadManual testing2702712.303
2014-12-23SMoffatManual testing2712724.606
2019-08-28Niels_Mache_NextcloudManual testing2722739.213
2019-08-28Niels_Mache_NextcloudManual testing27327418.43
2020-08-13Bill StaffenGPU72_TF27427536.85
2020-08-13ktonyGPU72_TF27527673.70


ECM factoring results:
No ECM results for M103822471


Lucas-Lehmer results:
No L-L results for M103822471


PRP results:
No PRP results for M103822471


CERT results:
No CERT results for M103822471


P-1 factor-bounds graph:
B1 = 763000, B2 = 22960000 (P-1 stage 2)
B1 = 763000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67
250
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Last modified: 2024-02-09T03:30:02+00:00