is 2 106236397 - 1
has 31980343 decimal digits
takes 435.717 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
Actual276144.056064.4737 %8980005189300021.86334.7043 %165.919366.1449 %
Target276144.056064.4737 %70000012000000042.81733.9713 %186.873365.8845 %
Difference---+198000-68107000-20.9540+0.7330%-20.9540+0.2604 %

Known prime factors (1 factor, 91.5 bits, 0.00008616% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10623639735705068614231804828394890712891.52816804536685403499155
5 × 17 × 479 × 10949 × 12841 × 2935613
2021-09-191284129356136,104,9531.02341.7765

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-09-19Ben Deloi-057368626431d7bcb8980005189300022891.52821.864.704%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-22lindedskynet-node0462632640.018
2010-09-05hustensaftaa2642650.035
2012-05-15omiXorpLLB03-z800-132652660.070
2014-11-07g0bManual testing2662670.141
2015-01-12Brandon VincentManual testing2672680.281
2015-03-16Smok_bmvManual testing2682690.563
2015-03-18Judge HaleCJ2692701.125
2015-03-30Judge Halenotebook2702712.251
2019-01-25Niels_Mache_NextcloudManual testing2712724.502
2020-03-28SRBaseManual testing2722739.004
2020-05-07Hans LoeblichManual testing27327418.01
2021-04-09Jon PaceManual testing274276108.0


ECM factoring results:
No ECM results for M106236397


Lucas-Lehmer results:
No L-L results for M106236397


PRP results:
No PRP results for M106236397


CERT results:
No CERT results for M106236397


P-1 factor-bounds graph:
B1 = 898000, B2 = 51893000 (P-1 stage 2)
B1 = 898000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
276
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: 2024-03-13T02:15:48+00:00