is 2 126008903 - 1
has 37932460 decimal digits
takes 639.670 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
Actual27430.361963.5135%12100003025000020.55265.4050%50.914465.4856%
Target277242.904864.9351%80000014000000061.71263.8604%304.617466.2887%
Difference-3-212.5429-1.4216%+410000-109750000-41.1601+1.5445%-253.7030-0.8031%

Known prime factors (1 factor, 79.5 bits, 0.00006309% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1260089038512649872324444799578092479.4943377796992774568
23 × 33 × 7 × 13 × 18307 × 9386879		2021-04-041830793868791,890.33.89197.0310

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-04-04GANManual testing12100003025000062479.49420.551,27941.115.405%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-05-25Donna NobleHTPC-V64263264--0.016--
2010-11-01Charles A. Morrismagnetar264265--0.030--
2012-09-14oodaira04265266--0.059--
2014-12-30tscXW6600266267--0.119--
2015-07-13el groccoManual testing267268--0.237--
2015-07-17Judge HaleManual testing268269--0.474--
2015-08-08Judge HaleManual testing269270--0.949--
2015-09-29BronzemanManual testing270271--1.898--
2015-12-02maxaManual testing271272--3.795--
2015-12-02maxaManual testing272273--7.591--
2021-01-03GANManual testing273274--15.18--


ECM factoring results:
No ECM results for M126008903


Lucas-Lehmer results:
No L-L results for M126008903


PRP results:
No PRP results for M126008903


P-1 factor-bounds graph:
B1 = 1210000, B2 = 30250000 (P-1 stage 2)
B1 = 1210000 (P-1 stage 1)
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108
TF factor-bounds graph:
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264
this exponent TF target: 77
TF double-checked to: 67.9
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Last modified: 2023-10-02T12:12:48+00:00