is 2 100437131 - 1
has 30234590 decimal digits
takes 383.056 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
Actual276152.373964.4737 %7310007310004.04251.5033 %156.416465.0077 %
Target276152.373964.4737 %65000011000000036.54143.8425 %188.915365.8388 %
Difference---+81000-109269000-32.4989-2.3392 %-32.4989-0.8310 %

Known prime factors (1 factor, 78.2 bits, 0.00007790% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1004371313571706966239350215315532478.2411778080940125296
24 × 3 × 37 × 47 × 36097 × 590119
2020-10-1736097590119609.500.36650.4063

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-10-17MarkSdesktop-i773100073100012478.2414.0431.503%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-01-191997rj7Manual testing2632640.020
2010-08-15Richard2642650.037
2011-02-13Craig MeyersManual testing2652660.074
2011-03-17Craig MeyersManual testing2662670.149
2013-10-24Fabrice Belletlinux102672680.298
2014-05-22SMoffatManual testing2682690.595
2014-08-25g0bManual testing2692701.190
2014-10-08ITSMasterStation2702712.381
2015-01-09shaugeManual testing2712724.762
2020-03-22JoDuManual testing2722739.52
2020-03-22JoDuManual testing27327419.05
2020-08-20penluManual testing27427538.09
2020-08-20penluManual testing27527676.19


ECM factoring results:
No ECM results for M100437131


Lucas-Lehmer results:
No L-L results for M100437131


PRP results:
No PRP results for M100437131


CERT results:
No CERT results for M100437131


P-1 factor-bounds graph:
B1 = 731000 (P-1 stage 1)
103
104
105
106
103
104
105
106
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
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Last modified: 2024-02-09T03:30:02+00:00