is 2 126046079 - 1
has 37943651 decimal digits
takes 639.859 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27430.352963.5135%6680002723100015.56974.9774%45.922665.3296%
Target277242.833164.9351%80000014000000061.71263.8606%304.545866.2888%
Difference-3-212.4802-1.4216%-132000-112769000-46.1430+1.1168%-258.6232-0.9592%

Known prime factors (1 factor, 78.1 bits, 0.00006193% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1260460793142340725873146159020572478.0561246504750803532
22 × 11 × 17 × 149 × 631 × 17724611
2022-05-2263117724611800.207.112613.276

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-05-15GANManual testing668000272310002478.05615.571,28031.144.977%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-05-25kiwiboybis263264--0.016--
2010-11-01Charles A. Morrischandra264265--0.030--
2012-09-15sasaki3HOME265266--0.059--
2014-12-31GrunwalderGIMPcompute-0-8266267--0.119--
2015-07-15el groccoManual testing267268--0.237--
2015-07-24Judge HaleManual testing268269--0.474--
2015-08-09Judge HaleManual testing269270--0.949--
2015-10-02BronzemanManual testing270271--1.897--
2015-10-19BronzemanManual testing271272--3.794--
2020-10-28SRBaseManual testing272273--7.589--
2021-01-24GANManual testing273274--15.18--


ECM factoring results:
No ECM results for M126046079


Lucas-Lehmer results:
No L-L results for M126046079


PRP results:
No PRP results for M126046079


P-1 factor-bounds graph:
B1 = 668000, B2 = 27231000 (P-1 stage 2)
B1 = 668000 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 77
TF double-checked to: 67.9
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Last modified: 2023-10-02T12:12:48+00:00