is 2 76097309 - 1
has 22907573 decimal digits
takes 211.778 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
Actual27450.276063.5135%690000129375005.47714.0895%55.753065.0056%1.4921%
PrimeNet2703.140161.4286%320000140000004.29895.5672%7.439063.5759%2.1474%
GPU7227450.276063.5135%500000180000005.86514.1904%56.141165.0425%1.5289%
Difference---+190000-5062500-0.3881-0.1010%-0.3881-0.0368%-0.0368%

Known prime factors (1 factor, 97.0 bits, 0.00012749% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
760973091604068926066606513073060680073097.0181053959034258758422767
3 × 7 × 23 × 1439 × 1777 × 85619 × 9966857
2015-05-14856199966857665,238,2542.51794.0927

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2015-05-15T01:38:00Jwb52zClay690000129375003097.0185.477423.610.954.089%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-08-10T00:00:00ANONYMOUSv4_computers21253--1.57683e-5--
2003-10-14T00:00:00markrv4_computers21262--0.008--
Missing TF 62 - 63
Missing TF 63 - 64
2010-08-20T22:00:00Geir S. Eidissenpc2264265--0.049--
2010-08-22T12:47:00symalladold_laptop265266--0.098--
2010-08-30T11:39:00markrdell2266267--0.196--
2010-11-02T17:42:00pc-learner267268--0.393--
2010-11-12T01:19:00pc-learner268269--0.786--
2010-11-14T11:08:00Aricw-b269270--1.571--
2013-02-11T03:42:00Clown_RoyalManual testing270271--3.142--
2015-05-13T12:26:00Travis Glenn RussoManual testing271272--6.285--
2015-05-13T12:26:00Travis Glenn RussoManual testing272273--12.57--
2015-05-13T12:26:00Travis Glenn RussoManual testing273274--25.14--


ECM factoring results:
No ECM results for M76097309


Lucas-Lehmer results:
No L-L results for M76097309


PRP results:
No PRP results for M76097309


P-1 factor-bounds graph:
B1 = 690000, B2 = 12937500 (P-1 stage 2)
B1 = 690000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2015-05-15T01:38:00+00:00