is 2 233747 - 1
has 70365 decimal digits
takes 0.001 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actualunknown3000000030000000001.560652.2829%1.560652.2829%52.2829%
PrimeNet2400.000055.0000%2400600000.000013.5479%0.000061.0965%6.0965%
GPU722440.000059.0909%45001000000.00019.8602%0.000163.1246%4.0337%
Difference-440.0000-59.0909%+29995500+2999900000+1.5605+42.4227%+1.5605-10.8417%-10.8417%

Known prime factors (3 factors, 248.3 bits, 0.10624245% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
23374743476943825.37493
3 × 31
-3311.951e-113.682e-84.968e-8
2337475323004262278205494980205862013098.7481138625150756631207027300
22 × 33 × 52 × 653 × 60082829 × 10748638427
2017-09-0860082829107486384273.352e+115.22688.8990
2337472471331548362840261579589140818381202338124.21752863385377413191646942830085913
33 × 11 × 43 × 113 × 167 × 1753 × 1011029 × 8027827 × 15416707
2021-07-028027827154167076.689e+110.06860.1329

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
2337472314279528998265904475411963908746354338124.122
233747107445940862272949370800887038779732884668568946149.590
23374713154908365437995851485830385676505967875552567263
702059453251694623
68222.965
23374757193520117437091566928591298572546640448523006042
7640407831635091777577489
75248.339
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-07-02T07:54:06Oliver KruseOllaptop300000003000000038124.2170.2440.0030.48828.309%
2021-07-05T14:00:23Oliver KruseManual testing30000000300000000024---1.561--43.883%


Trial Factoring results:
Exponent "233747" not found


ECM factoring results:

Old Calculation Method

Total ECM effort:10.157 GHz-days
Estimated T-Level:27.203
DigitsB1CurvesCompleteFacMiss
2011000586 / 1005.8600.277%
2550000556 / 2801.98613.680%
30250000282 / 6400.44164.341%

New Calculation Method

Total ECM effort:10.157 GHz-days
Estimated T-Level:27.203
DigitsB1CompleteFacMiss
201100032.3450.000%
25500004.2031.495%
302500000.41765.921%
3510000000.03396.772%
4030000000.00299.787%


ECM Summary

B1B2factorcurvesGHz-days
110001100000300.039
5000050000002741.635
250000250000002286.801
25000025000000401.193
25000037951073140.489


Lucas-Lehmer results:
Exponent "233747" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T05:23:55Oliver KruseDoppelherz
43476943
532300426227820549498020586201
61BA963156A3B2__no
2017-09-22T10:02:50Oliver KruseManual testing
43476943
532300426227820549498020586201
61BA963156A3B2__no
2017-09-28T13:10:12alpertronManual testing
43476943
532300426227820549498020586201
61BA963156A3B2__no
2017-12-07T04:45:05ATHxps
43476943
532300426227820549498020586201
61BA963156A3B2__no
2020-04-17T20:05:28Oliver KruseAddPrpType5
43476943
532300426227820549498020586201
C1DF770F4B3D20__no
2021-07-02T12:33:12firejugglerMaison
43476943
532300426227820549498020586201
24713315483628402615795891408183812023
C1DF770F4B3D205Dno
2021-07-03T03:35:12marssystemssystem11
43476943
532300426227820549498020586201
24713315483628402615795891408183812023
C1DF770F4B3D205Dno


P-1 factor-bounds graph:
B1 = 30000000, B2 = 3000000000 (P-1 stage 2)
B1 = 30000000 (P-1 stage 1)
100
101
102
103
104
105
106
107
108
100
101
102
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
220
230
240
250
260
270
280
290
2100
2110
2120
2130
Last modified: 2021-09-18T15:10:02+00:00