is 2 9365947 - 1
has 2819431 decimal digits
takes 2.589 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L094E1B2F73D4C90Cdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27151.044366.1972%20000004771857090104.950010.9979%155.994369.9148%
Target2686.364064.7059%6000014000000.05332.4584%6.417365.5736%
Difference+3+44.6803+1.4913%+1940000+4770457090+104.8967+8.5395%+149.5770+4.3412%

Known prime factors:
No known factors for M9365947

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-04-27ANONYMOUSv4_computers50000812500---0.037--1.392%
2012-08-31James Heinrichi7-9201750003850000---0.150--2.691%
2022-12-24ThaZ-17020000004771857090---105.0--10.998%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-11-14ANONYMOUSv4_computers21255--0.001--
1999-03-15ANONYMOUSv4_computers21264--0.380--
2013-09-05NesowaManual testing264265--0.399--
2015-05-08VictordeHollanderManual testing265266--0.798--
2016-05-17snme2pm1Manual testing266267--1.596--
2017-04-27snme2pm1Manual testing267268--3.191--
2019-09-09mnd9Manual testing268269--6.383--
2020-12-13-Anonymous-Manual testing269270--12.77--
2020-12-13-Anonymous-Manual testing270271--25.53--


ECM factoring results:
Total ECM effort:1.261 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000031.261


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-07-03twmossv4_computers094E1B2F73D4C90C2.589
2003-05-04ANONYMOUSv4_computers094E1B2F73D4C90C2.589


PRP results:
No PRP results for M9365947


P-1 factor-bounds graph:
B1 = 2000000, B2 = 4771857090 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
B1 = 175000, B2 = 3850000 (P-1 stage 2)
B1 = 175000 (P-1 stage 1)
B1 = 50000, B2 = 812500 (P-1 stage 2)
B1 = 50000 (P-1 stage 1)
103
104
105
106
107
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
271
270
269
268
267
266
265
264
255
this exponent TF target: 68
TF double-checked to: 67.7
ECM T-Level=0.58 ~= -15-bit
250
260
270
280
Last modified: 2022-12-24T19:59:26+00:00