is 2 104806277 - 1
has 31549834 decimal digits
takes 417.296 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
Actual276146.021764.4737 %7710007710004.45121.5483 %150.473065.0237 %
Target276146.021764.4737 %65000012000000041.29373.9261 %187.315565.8685 %
Difference---+121000-119229000-36.8425-2.3778 %-36.8425-0.8447 %

Known prime factors (1 factor, 89.8 bits, 0.00008572% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10480627711075326843096455948484699692889.8395283713514170747592
23 × 35 × 353 × 367 × 72481 × 289453
2021-07-07724812894531,196,2240.48670.8516

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-07-07MarkSlaptop6477100077100012889.8394.4511.548%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-23Carsten Kossendeymother2632640.019
2010-08-29Mr-Plonklinux-i7-9202642650.036
2012-05-08oodairacom22652660.071
2013-09-09willmoreManual testing2662670.143
2013-09-11Cow_tippingManual testing2672680.285
2013-09-13g0bManual testing2682690.570
2013-09-19g0bManual testing2692701.141
2013-09-25g0bManual testing2702712.282
2014-12-28shaugeManual testing2712724.563
2019-12-29storm5510Manual testing2722739.126
2020-04-01SRBaseManual testing27327418.25
2021-03-28TheJudgerManual testing27427536.51
2021-03-28TheJudgerManual testing27527673.01


ECM factoring results:
No ECM results for M104806277


Lucas-Lehmer results:
No L-L results for M104806277


PRP results:
No PRP results for M104806277


CERT results:
No CERT results for M104806277


P-1 factor-bounds graph:
B1 = 771000 (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
290
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Last modified: 2024-03-03T02:29:32+00:00