is 2 3770317 - 1
has 1134979 decimal digits
takes 0.396 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26815.809067.6471%5000001303648501.15377.1111%16.962669.9477%2.3007%
PrimeNet2600.040763.3333%170003400000.00533.1836%0.046064.5007%1.1673%
GPU722640.944065.6250%240004500000.00722.1602%0.951266.3676%0.7426%
Difference+4+14.8649+2.0221%+476000+129914850+1.1465+4.9509%+16.0114+3.5801%+3.5801%

Known prime factors (2 factors, 120.4 bits, 0.00319285% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
377031766314272358655591652.558879425687
72 × 41 × 437743
-494377430.00030.00360.0068
37703172609185516936365736312167.82234601672975195
5 × 19 × 587 × 620490863
2018-11-175876204908638.04405.14849.616

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
3770317173026239004377735125408861932047472937120.380
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-04-16T19:28:58Jocelyn LaroucheManual testing200000200000---0.030--1.293%
2022-05-16T11:10:29Jocelyn LaroucheManual testing500000130364850-
skipped known factor: 6631427235865559
--1.154--7.111%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2022-03-14T01:21:44Jocelyn LaroucheManual testing26726867.822210.1630.8050.331


ECM factoring results:

Old Calculation Method

Total ECM effort:0.299 GHz-days
Estimated T-Level:0.100
DigitsB1CurvesCompleteFacMiss
20110002 / 1000.02098.010%
25500002 / 2800.00799.287%

New Calculation Method

Total ECM effort:0.299 GHz-days
Estimated T-Level:0.100
DigitsB1CompleteFacMiss
20110000.06593.752%
25500000.00699.419%


ECM Summary

B1B2factorcurvesGHz-days
50000500000020.299


Lucas-Lehmer results:
No L-L results for M3770317


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T19:28:42kkmrkkblmbrbkManual testing
6631427235865559
A522B84D3EC1BF__no
2017-12-07T09:53:57Oliver KruseThreadripper
6631427235865559
A522B84D3EC1BF__no
2018-11-19T13:22:24Oliver KruseGTX-5
6631427235865559
260918551693636573631
D8E50F4CC23580__no
2018-11-20T14:36:58pewlaptop
6631427235865559
260918551693636573631
D8E50F4CC23580__no


P-1 factor-bounds graph:
B1 = 500000, B2 = 130364850 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
B1 = 200000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
268
250
260
270
280
290
2100
Last modified: 2022-05-16T11:10:29+00:00