is 21120883-1
has 337,420 decimal digits
takes 0.033 GHz-days to do one L-L test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2631.423966.6667%300,00010,000,0000.03566.1587%1.459572.8253%10.3253%
PrimeNet2560.008662.5000%4,50070,0000.00032.0817%0.008964.5817%2.0817%
GPU722600.137065.0000%4,50022,0000.00020.6869%0.137365.6869%0.6869%
Difference+3+1.2869+1.6667%+295,500+9,978,000+0.0354+5.4718%+1.3222+7.1385%+7.1385%

Known prime factors (3 factors, 193.0 bits, 0.01721791% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
112088356044151825.74025
52
2525-4.010e-121.074e-62.187e-6
11208837835798664288891549.477349536868
22 × 137 × 637841
137637,8412014-04-308.904e-50.00150.0028
112088328442661937953093499744878123573675136117.776126876141122459228571335626125
32 × 53 × 83 × 227 × 241 × 379 × 1549 × 6761 × 52957 × 118163
52,957118,1632014-12-271.173e+110.00240.0046

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
1120883439150683547004858782392375.217
11208831594044840492595803016820411034159706929340144143.516
112088322287097242223330154722326952268272809526926539963
9
51167.253
112088312490614431948478909141114547842928738463213095716
443461489
59192.993
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2014-12-27T12:07:00alpertronManual testing300,00010,000,0001236117.7760.0130.0660.0266.159%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-04-30T11:29:00TJAOIManual testing??49.477152.21286e-50.0765.05135e-5


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,0002819.92
250,00025,000,000447.764


Lucas-Lehmer results:
Exponent "1120883" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-29T04:01:08Oliver KruseGTX-3
56044151
783579866428889
284426619379530934997448781235736751
4EACA29A1D177938no
2017-10-05T21:39:59Oliver KruseManual testing
56044151
783579866428889
284426619379530934997448781235736751
4EACA29A1D1779__no
2017-10-16T19:39:44Oliver KruseThreadripper
56044151
783579866428889
284426619379530934997448781235736751
4EACA29A1D1779__no
2018-01-02T09:25:07ATHec2-1xf
56044151
783579866428889
284426619379530934997448781235736751
4EACA29A1D1779__no


P-1 factor-bounds graph:
B1 = 300,000, B2 = 10,000,000 (stage 2)
B1 = 300,000 (stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
TF factor-bounds graph:
263
2
220
230
240
250
260
270
280
290
2100
2110
2120
Last modified: 2020-10-02T07:40:47+00:00