is 2 108457199 - 1
has 32648871 decimal digits
takes 476.007 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
Actual276141.106364.4737 %7910002377500013.00294.0365 %154.109265.9077 %
Target276141.106364.4737 %70000012000000045.81873.9813 %186.925065.8881 %
Difference---+91000-96225000-32.8158+0.0553%-32.8158+0.0196 %

Known prime factors (1 factor, 87.6 bits, 0.00008074% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1084571992295206313319308375946140732787.5691058116166783593764
22 × 3 × 7 × 11 × 23 × 59 × 319411 × 2641993
2022-01-123194112641993288,9892.83804.1369

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-01-12MarkSdesktop-i779100023775000622787.56912.154.037%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-27hustensaftW7hm2632640.018
2010-09-11carlos56phenom8102642650.034
2012-05-22Andrew Bdell_xps_172652660.069
2013-10-12Cow_tippingManual testing2662670.138
2014-08-25g0bManual testing2672680.276
2014-11-08ANONYMOUSManual testing2682690.551
2014-12-02ANONYMOUSManual testing2692701.102
2015-01-27Brandon VincentManual testing2702712.205
2019-01-27Niels_Mache_NextcloudManual testing2712724.410
2019-10-06Niels_Mache_NextcloudManual testing2722738.819
2019-10-06Niels_Mache_NextcloudManual testing27327417.64
2021-04-26TheJudgerManual testing27427535.28
2021-04-26TheJudgerManual testing27527670.55


ECM factoring results:
No ECM results for M108457199


Lucas-Lehmer results:
No L-L results for M108457199


PRP results:
No PRP results for M108457199


CERT results:
No CERT results for M108457199


P-1 factor-bounds graph:
B1 = 791000, B2 = 23775000 (P-1 stage 2)
B1 = 791000 (P-1 stage 1)
104
105
106
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
260
270
280
290
JSON version of this page
Last modified: 2024-02-09T03:30:02+00:00