is 2 179083 - 1
has 53910 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
Actualunknown10000000020000000001.360749.3761%1.360749.3761%49.3761%
PrimeNet2400.000055.0000%1900450000.000011.9343%0.000060.3704%5.3704%
GPU722440.000059.0909%3200700000.00008.2825%0.000162.4792%3.3883%
Difference-440.0000-59.0909%+99996800+1999930000+1.3607+41.0936%+1.3607-13.1031%-13.1031%

Known prime factors (2 factors, 130.9 bits, 0.07308045% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1790832865329721.4508
23
-881.563e-125.349e-81.089e-7
17908387101569182765797071048554932822333109.4242431877095613927538377415917
32408143 × 75039075691992828419
2019-11-1632408143750390756919928284198.299e+112.734e+105.105e+10

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
179083249574652124885138555790484857108788036740130.875
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-06-23T04:24:12kkmrkkblmbrbkManual testing100000000200000000012-
skipped known factor: 2865329
--1.361--41.845%


Trial Factoring results:
No TF results for M179083


ECM factoring results:

Old Calculation Method

Total ECM effort:13.405 GHz-days
Estimated T-Level:28.836
DigitsB1CurvesCompleteFacMiss
2011000772 / 1007.7200.043%
2550000772 / 2802.7576.316%
30250000491 / 6400.76746.404%

New Calculation Method

Total ECM effort:13.405 GHz-days
Estimated T-Level:28.836
DigitsB1CompleteFacMiss
201100049.9810.000%
25500006.7540.117%
302500000.69150.100%
3510000000.05694.590%
4030000000.00499.635%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002811.368
2500002500000046911.41
2500002500000010.024
2500003725000070.198
25000038500000140.401


Lucas-Lehmer results:
No L-L results for M179083


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T00:40:06Oliver KruseOllaptop
2865329
4CB8D4D4FA69DB__no
2017-09-22T10:04:52Oliver KruseManual testing
2865329
4CB8D4D4FA69DB__no
2017-10-12T02:39:51kkmrkkblmbrbkc4.xlarge4CB8D4D4FA69DB__no
2019-11-17T20:31:49treborLaptop
2865329
871015691827657970710485549328223
A48E5C0CD25AAA68no
2019-11-18T21:17:59marssystemsSYSTEM01
2865329
871015691827657970710485549328223
A48E5C0CD25AAA68no


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: 2022-04-08T09:03:49+00:00