is 2 1849733 - 1
has 556826 decimal digits
takes 0.100 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
Actual26716.063968.6567%5001005001000.03931.9983%16.103269.2830%0.6263%
PrimeNet2570.010463.1579%90001600000.00143.0230%0.011764.2716%1.1137%
GPU722610.166165.5738%90001500000.00131.6309%0.167466.1352%0.5615%
Difference+6+15.8978+3.0829%+491100+350100+0.0380+0.3673%+15.9359+3.1478%+3.1478%

Known prime factors (3 factors, 157.3 bits, 0.00850153% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
184973355491991825.72615
3 × 5
-352.424e-122.446e-74.803e-7
1849733238557592719578148712064.3716448433171695
5 × 17 × 109 × 695999263
2017-09-211096959992633.49602.98295.5712
18497331647416205872207056872167.15944531189254671
3 × 7 × 17 × 4007 × 31129829
2021-03-2840073112982931.5620.13370.2492

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
184973313238035788176496152011981612890.097
184973391418405269514661149966528172892.885
1849733393003644280094678788689241864312287137740131.530
184973321808554691358215394489834311331240659034664160748157.256
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-04-12T11:56:57Lisander ViaeneDesktop500100500100-
skipped known factor: 55491991
--0.039--1.998%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2017-09-21T11:31:00TJAOIManual testing264265*64.371201.5720.2043.196


ECM factoring results:

Old Calculation Method

Total ECM effort:19.800 GHz-days
Estimated T-Level:24.607
DigitsB1CurvesCompleteFacMiss
2011000258 / 1002.5807.480%
2550000258 / 2800.92139.729%

New Calculation Method

Total ECM effort:19.800 GHz-days
Estimated T-Level:24.607
DigitsB1CompleteFacMiss
20110008.8160.015%
25500000.79944.991%
302500000.04995.179%
3510000000.00299.773%


ECM Summary

B1B2factorcurvesGHz-days
500005000000292.005
50000500000070.484
50000660000022217.31


Lucas-Lehmer results:
No L-L results for M1849733


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-04T06:12:28Oliver KruseGTX-0
55491991
23855759271957814871
2FB883E4AD03FA__no
2017-11-06T22:48:51kkmrkkblmbrbkc4.xlarge
55491991
23855759271957814871
2FB883E4AD03FA__no
2021-03-28T20:43:10rbanovccg_lnx02
55491991
23855759271957814871
164741620587220705687
EE46822ED443F41Eno


P-1 factor-bounds graph:
B1 = 500100 (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:
267
265
220
230
240
250
260
270
280
290
2100
Last modified: 2022-04-12T11:56:57+00:00