is 2 86930407 - 1
has 26168661 decimal digits
takes 279.988 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
Actual276176.048864.4737 %705000139237506.65603.4856 %182.704865.7120 %
Target27588.023464.0000 %5500009500000026.60103.9551 %114.624465.4238 %
Difference+1+88.0254+0.4737 %+155000-81076250-19.9451-0.4694 %+68.0803+0.2882 %

Known prime factors (1 factor, 88.5 bits, 0.00010179% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
869304074348300576998780948471226572788.4912501023938032857104
24 × 36 × 7 × 47 × 173023 × 3766783
2018-06-2417302337667831,193,1001.72251.7901

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-06-24TheJudgerManual testing705000139237501222788.4917.4853.841%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-11-23Architects Cubedm1_472642650.043
2013-01-31LaurVManual testing2652660.086
2013-03-02SMoffatManual testing2662670.172
2013-03-07CLICHEJean-Baptiste2672680.344
2013-03-08Brandon SheaManual testing2682690.688
2013-03-13ITSTV2692701.375
2014-08-24GrunwalderGIMPcompute-0-62702712.751
2017-04-29Strolling JellyfishManual testing27127316.50
2017-06-23ANONYMOUSManual testing27327422.01
2018-02-03The MawnManual testing27427544.01
2018-02-11Strolling JellyfishManual testing27527688.03


ECM factoring results:
No ECM results for M86930407


Lucas-Lehmer results:
No L-L results for M86930407


PRP results:
No PRP results for M86930407


CERT results:
No CERT results for M86930407


P-1 factor-bounds graph:
B1 = 705000, B2 = 13923750 (P-1 stage 2)
B1 = 705000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
276
275
274
273
271
270
269
268
267
266
265
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
290
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00