is 2 105934487 - 1
has 31889459 decimal digits
takes 434.479 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
Actual277288.934864.9351 %830000157700009.77673.3932 %298.711666.1249 %
Target276144.466664.4737 %70000012000000042.81733.9699 %187.283965.8841 %
Difference+1+144.4683+0.4614 %+130000-104230000-33.0405-0.5768 %+111.4277+0.2408 %

Known prime factors (1 factor, 77.0 bits, 0.00007271% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1059344871532307082084868845671132477.020723233351800188
22 × 34 × 201937 × 11053951
2020-09-1920193711053951336.974.71716.6894

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-09-19schoenbornManual testing8300001577000022477.02010.463.736%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-21sasaki3mata_ma12632640.019
2010-09-02Charles A. Morrispulsar_82642650.035
2012-05-14omiXorpLLB16-T5500-092652660.071
2013-09-05Allan Manangan2662670.141
2014-10-20g0bManual testing2672680.282
2014-11-27SRS TechnologyManual testing2682728.465
2020-02-19el groccoManual testing2722739.029
2020-02-21Hans LoeblichManual testing27327418.06
2020-02-24LaurVManual testing27427536.12
2020-04-03Strolling JellyfishManual testing27527672.23
2020-05-03TheJudgerManual testing276277144.5


ECM factoring results:
No ECM results for M105934487


Lucas-Lehmer results:
No L-L results for M105934487


PRP results:
No PRP results for M105934487


CERT results:
No CERT results for M105934487


P-1 factor-bounds graph:
B1 = 830000, B2 = 15770000 (P-1 stage 2)
B1 = 830000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
277
276
275
274
273
272
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67
250
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Last modified: 2024-03-13T02:15:48+00:00