is 2 194443 - 1
has 58534 decimal digits
takes 0.001 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
Actualunknown10000000020000000001.360749.5126%1.360749.5126%49.5126%
PrimeNet2400.000055.0000%2000500000.000012.4331%0.000060.5949%5.5949%
GPU722440.000059.0909%3600800000.00018.8240%0.000162.7007%3.6098%
Difference-440.0000-59.0909%+99996400+1999920000+1.3607+40.6887%+1.3607-13.1881%-13.1881%

Known prime factors (2 factors, 118.4 bits, 0.06088607% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
19444320610959824.29753
53
-1531.163e-112.563e-83.827e-8
194443211082630423503735222881051132994.09254278793894227031886692
22 × 3 × 13 × 17 × 19 × 1077216676475093909
2021-01-241910772166764750939092.069e+10392,406,097732,905,312

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
19444343506154412709881230256572067173336736118.389
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-09-02T03:39:09kkmrkkblmbrbkManual testing100000000200000000012-
skipped known factor: 20610959
--1.361--41.993%


Trial Factoring results:
No TF results for M194443


ECM factoring results:

Old Calculation Method

Total ECM effort:12.229 GHz-days
Estimated T-Level:28.422
DigitsB1CurvesCompleteFacMiss
2011000719 / 1007.1900.073%
2550000719 / 2802.5687.635%
30250000438 / 6400.68450.414%

New Calculation Method

Total ECM effort:12.229 GHz-days
Estimated T-Level:28.422
DigitsB1CompleteFacMiss
201100045.5650.000%
25500006.1340.217%
302500000.62453.556%
3510000000.05095.117%
4030000000.00399.672%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002811.370
250000250000003929.56
2500003375000070.190
25000036000000140.391
25000038500000210.603
2500003850000040.115


Lucas-Lehmer results:
No L-L results for M194443


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T01:46:49Oliver KruseOllaptop
20610959
1763D53498C3D6__no
2017-09-22T10:02:13Oliver KruseManual testing
20610959
1763D53498C3D6__no
2017-10-12T05:41:19kkmrkkblmbrbkc4.xlarge1763D53498C3D6__no
2020-04-17T19:02:28Oliver KruseAddPrpType5
20610959
C7FEDD9184EE8B__no
2021-01-24T13:24:18ViliamF3
20610959
21108263042350373522288105113
C7FEDD9184EE8B63no


P-1 factor-bounds graph:
B1 = 100000000, B2 = 2000000000 (P-1 stage 2)
B1 = 100000000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-05-18T18:38:43+00:00