is 2 12011 - 1
has 3616 decimal digits
takes 0.000 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
Actual2672,473.892179.1045%100000000100000000000.182812.1996%2,474.074981.6537%
Target2440.000268.1818%500100000.00001.3367%0.000268.6071%
Difference+23+2,473.8919+10.9227%+99999500+9999990000+0.1828+10.8629%+2,474.0747+13.0465%

Known prime factors (5 factors, 317.5 bits, 2.64340591% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1201124023514.5521
1
-111.817e-132.860e-105.820e-10
120118380973122811239.60834888740
22 × 3 × 5 × 29 × 20051
2008-08-2629200511.022e-53.202e-75.836e-7
12011451764053534633111755.3261880626315605
3 × 5 × 419 × 299224553
2008-08-294192992245530.42940.00470.0087
1201173025985501087703645672272.629303996276334558753
11 × 131437 × 210260620079
2008-08-2913143721026062007983,9833.27606.1186
120115682734658894675516069442937775952795156941135.3842365637606733275962063709490373804344
23 × 32 × 13 × 29 × 527381621944481 × 165253009514782471
2014-07-075273816219444811652530095147824711.301e+132,717,3334,808,886

26 Composite Factors:
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-09-08kkmrkkblmbrbkManual testing1000000001000000000012-
skipped known factor: 24023
skipped known factor: 838097312281
skipped known factor: 45176405353463311
--0.183--12.200%
2021-08-27Seth_TrManual testing400000000400000000-
skipped known factor: 24023
skipped known factor: 838097312281
skipped known factor: 45176405353463311
--0.114--7.739%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-08-26ANONYMOUSManual testing??39.608124.11782e-60.0000.000


ECM factoring results:
Total ECM effort:165.942 GHz-days
Estimated T-Level:41.878
DigitsB1CompleteFacMiss
20110001,679.9100.000%
2550000482.8000.000%
30250000103.6470.000%
35100000018.3820.000%
4030000002.8056.052%
45110000000.37668.682%
50440000000.04595.604%
551100000000.00599.518%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
10.00000e+0
10.00000e+0
5000050000003050.063
250000250000001150.118
50000050000000250.051
10000001000000001,7647.259
30000003000000003,68345.47
1100000011000000002,496113.0


Lucas-Lehmer results:
No L-L results for M12011


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21Oliver KruseOliver-PCD787FD5B94062F__?
2017-09-21Oliver KruseManual testingD787FD5B94062F__?
2017-10-02kkmrkkblmbrbkManual testing
24023
838097312281
45176405353463311
7302598550108770364567
56827346588946755160694429377759527951569
D787FD5B94062F__no
2017-12-07ATHManual testing
24023
838097312281
45176405353463311
7302598550108770364567
56827346588946755160694429377759527951569
D787FD5B94062F__no
2020-04-17Oliver KruseManual testing
24023
838097312281
45176405353463311
7302598550108770364567
56827346588946755160694429377759527951569
59CA4AAAE5362D__no
2022-05-12Jorge CoveiroManual testing
24023
59CA4AAAE5362D6Dno


P-1 factor-bounds graph:
B1 = 100000000, B2 = 10000000000 (P-1 stage 2)
B1 = 400000000 (P-1 stage 1)
B1 = 100000000 (P-1 stage 1)
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109
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TF factor-bounds graph:
2
this exponent TF target: 44
TF double-checked to: 67.7
ECM T-Level=41.88 ~= 123-bit
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Last modified: 2023-03-25T13:08:14+00:00