is 2 1380623 - 1
has 415609 decimal digits
takes 0.053 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
Actual26721.522168.6567%500000150000000.07144.8990%21.593570.1922%1.5355%
PrimeNet2560.007062.5000%65001100000.00072.7547%0.007663.5330%1.0330%
GPU722600.111265.0000%5500650000.00051.1709%0.111765.4098%0.4098%
Difference+7+21.4109+3.6567%+494500+14935000+0.0709+3.7280%+21.4818+4.7824%+4.7824%

Known prime factors (3 factors, 168.7 bits, 0.01222176% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
13806231090034330752971546.63139476176
24 × 17 × 145133
-171451331.105e-50.00040.0008
138062357074743860805611652.3422066992360
23 × 5 × 51674809
2014-08-058516748090.00080.15590.2911
138062310019552944272206270892269.763362863466140728
23 × 3 × 7 × 17 × 1061 × 119748383
2018-07-29106111974838389.6220.36120.6746

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
13806236221343022721042624146210016173098.973
138062310921656688053704480560022809492043336116.395
1380623571863417894116879075567656329291692937122.105
138062362335075800631970099656059607409990803108402300291
3
51168.736
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
unknown50000015000000-
skipped known factor: 109003433075297
--0.071--4.899%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-08-05T10:30:00TJAOIManual testing??52.342160.0000.1130.001


ECM factoring results:

Old Calculation Method

Total ECM effort:25.303 GHz-days
Estimated T-Level:25.391
DigitsB1CurvesCompleteFacMiss
2011000301 / 1003.0104.855%
2550000301 / 2801.07534.064%
3025000050 / 6400.07892.479%

New Calculation Method

Total ECM effort:25.303 GHz-days
Estimated T-Level:25.391
DigitsB1CompleteFacMiss
201100012.2630.000%
25500001.35725.749%
302500000.11389.315%
3510000000.00899.236%


ECM Summary

B1B2factorcurvesGHz-days
50000500000024811.64
50000500000030.141
250000350000005013.52


Lucas-Lehmer results:
No L-L results for M1380623


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-30T23:57:25Oliver KruseGTX-0
109003433075297
5707474386080561
F93E7EE79366A0__no
2017-11-04T19:39:41kkmrkkblmbrbkc4.xlarge
109003433075297
5707474386080561
F93E7EE79366A0__no
2018-08-02T19:38:19Oliver KruseGTX-3
109003433075297
5707474386080561
1001955294427220627089
9240DC8757B1B1__no
2018-08-03T10:52:26kkmrkkblmbrbkc5.large
109003433075297
5707474386080561
1001955294427220627089
9240DC8757B1B1__no


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (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
2
240
250
260
270
280
290
2100
Last modified: 2021-09-17T08:20:11+00:00