is 2 274583 - 1
has 82658 decimal digits
takes 0.002 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
Actualunknown100000010312187886055.678059.8269%55.678059.8269%59.8269%
PrimeNet2400.000052.5000%2800800000.000114.8622%0.000159.5595%7.0595%
GPU722440.000056.8182%50001300000.000110.8077%0.000161.4851%4.6670%
Difference-440.0000-56.8182%+995000+103121748860+55.6779+49.0192%+55.6779-1.6583%-1.6583%

Known prime factors (2 factors, 119.9 bits, 0.04367129% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
274583549167619.0671
1
-112.544e-139.908e-92.017e-8
274583228026331547276780254565168579131100.8474152229590820931744765065
5 × 830445918164186348953013
2022-06-1358304459181641863489530136.449e+114.483e+148.373e+14

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
274583125224536416823347582058789933078609737119.914
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-01-03T17:56:36Lisander ViaeneManual testing100000100000-
skipped known factor: 549167
--0.001--11.642%
2022-04-05T01:02:57Jocelyn LaroucheManual testing1000000103121878860-
skipped known factor: 549167
--55.68--49.520%


Trial Factoring results:
No TF results for M274583


ECM factoring results:

Old Calculation Method

Total ECM effort:10.900 GHz-days
Estimated T-Level:26.852
DigitsB1CurvesCompleteFacMiss
2011000518 / 1005.1800.548%
2550000518 / 2801.85015.672%
30250000237 / 6400.37069.032%

New Calculation Method

Total ECM effort:10.900 GHz-days
Estimated T-Level:26.852
DigitsB1CompleteFacMiss
201100032.6900.000%
25500004.3801.253%
302500000.43764.607%
3510000000.03596.595%
4030000000.00299.774%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002812.052
250000250000002007.304
25000034250000140.574
25000036500000210.885
2500003675000020.084


Lucas-Lehmer results:
No L-L results for M274583


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T10:30:02Oliver KruseOllaptop
549167
D75E8D937AE336__no
2017-09-22T20:35:44Oliver KruseManual testing
549167
D75E8D937AE336__no
2017-10-13T05:49:55Oliver KruseThreadripper32F8D113FECE67__no
2017-10-13T05:56:43Oliver KruseThreadripperD75E8D937AE336__no
2017-11-02T10:45:45kkmrkkblmbrbkc4.xlarge
549167
32F8D113FECE67__no
2019-04-09T04:27:47kkmrkkblmbrbkc5.large
549167
D75E8D937AE336BAno
2022-05-12T18:23:57Jorge CoveiroManual testing
549167
32F8D113FECE67B6no
2022-06-14T18:46:41mnd975211backdoor
549167
2280263315472767802545651685791
32F8D113FECE67B6no


P-1 factor-bounds graph:
B1 = 1000000, B2 = 103121878860 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-07-16T19:33:38+00:00