is 2 104523217 - 1
has 31464624 decimal digits
takes 416.169 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
Actual276146.417264.4737 %6500006500003.75271.4358 %150.169864.9838 %
Target276146.417264.4737 %65000012000000041.29373.9248 %187.710965.8680 %
Difference-----119350000-37.5411-2.4891 %-37.5411-0.8843 %

Known prime factors (1 factor, 106.6 bits, 0.00010199% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10452321712292404266108969680919677687900133106.599588022671848541060543500
22 × 53 × 11 × 19 × 59 × 463 × 38671 × 49741 × 107089
2021-06-21497411070891.813e+90.30520.5844

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-06-21KrieselManual testing650000650000133106.5993.7751.436%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-18QubycServer22632640.019
2010-08-27Torchwood InstitutePhenom95502642650.036
2012-05-06ALSJC-Witten2652660.071
2014-07-11Frostmanewukong2332662670.143
2014-07-24Preben SManual testing2672680.286
2014-07-24Ryan PropperManual testing2682714.004
2014-12-29sebanManual testing2712724.576
2019-12-04CGHManual testing2722739.151
2020-03-31SRBaseManual testing27327418.30
2021-02-22lobsterfordinnerManual testing27427536.60
2021-03-27linamentManual testing27527673.21


ECM factoring results:
No ECM results for M104523217


Lucas-Lehmer results:
No L-L results for M104523217


PRP results:
No PRP results for M104523217


CERT results:
No CERT results for M104523217


P-1 factor-bounds graph:
B1 = 650000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
276
275
274
273
272
271
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67
250
260
270
280
290
2100
2110
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Last modified: 2024-03-13T02:15:48+00:00