is 2 23437081 - 1
has 7055265 decimal digits
takes 19.010 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LD4A36B539F3AE1F6double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual275326.487366.6667%1080000550800004.73044.4791%331.217768.1597%1.4930%
PrimeNet2660.630162.1212%10000036000000.34194.7657%0.972063.9264%1.8052%
GPU7227010.195464.2857%16000045000000.46633.4834%10.661765.5298%1.2441%
Difference+5+316.2919+2.3810%+920000+50580000+4.2641+0.9956%+320.5560+2.6299%+2.6299%

Known prime factors:
No known factors for M23437081

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-08-20T00:00:00jhalpinv4_computers2450002756250---0.449--1.913%
2021-10-28T22:46:34Architects Cubedburrow108000055080000---4.730--4.479%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-09-10T00:00:00Net_Forcev4_computers21256--0.000--
2003-07-06T00:00:00tscv4_computers21267--1.268--
2016-06-10T01:52:14VictordeHollanderManual testing267268--1.275--
2018-01-03T12:36:39VictordeHollanderManual testing268269--2.551--
2018-08-23T10:40:35ramgeisManual testing269270--5.101--
2021-08-29T02:30:16mikrManual testing270271--10.20--
2021-09-06T17:24:00TheJudgerManual testing271272--20.41--
2021-09-06T17:24:00TheJudgerManual testing272273--40.81--
2021-09-19T17:18:25TheJudgerManual testing273274--81.62--
2021-10-22T16:54:32TheJudgerManual testing274275--163.2--


ECM factoring results:
No ECM results for M23437081


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-09-02T00:00:00jhalpinv4_computersD4A36B539F3AE1F619.01
2010-03-20T13:27:00PaJaSoftdaciceD4A36B539F3AE1F619.01


PRP results:
No PRP results for M23437081


P-1 factor-bounds graph:
B1 = 1080000, B2 = 55080000 (P-1 stage 2)
B1 = 1080000 (P-1 stage 1)
B1 = 245000, B2 = 2756250 (P-1 stage 2)
B1 = 245000 (P-1 stage 1)
104
105
106
107
104
105
106
107
108
TF factor-bounds graph:
275
274
273
272
271
270
269
268
267
256
250
260
270
280
290
2100
Last modified: 2021-10-28T22:46:34+00:00