is 2 27184319 - 1
has 8183296 decimal digits
takes 25.164 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L2DF64FF54FC4E86Edouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27235.179665.2778%4200004200000.56371.5408%35.743465.8128%0.5350%
PrimeNet2660.543362.1212%12000045000000.48145.2135%1.024764.0960%1.9748%
GPU722708.790064.2857%20000060000000.69263.9047%9.482665.6802%1.3945%
Difference+2+26.3896+0.9921%+220000-5580000-0.1289-2.3638%+26.2607+0.1326%+0.1326%

Known prime factors:
No known factors for M27184319

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2005-07-17T00:00:00ANONYMOUSv4_computers420000420000---0.564--1.541%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-08-18T00:00:00Net_Forcev4_computers21256--0.000--
2004-03-26T00:00:00ANONYMOUSv4_computers21262--0.023--
2004-10-18T00:00:00ANONYMOUSv4_computers21267--1.093--
2012-02-14T23:53:00XyzzyManual testing267268--1.100--
2012-02-14T23:53:00XyzzyManual testing268269--2.199--
2017-03-26T22:07:01ramgeisManual testing269270--4.398--
2021-02-21T06:40:26mikrManual testing270271--8.797--
2021-04-19T18:40:10Sid & AndyManual testing271272--17.59--


ECM factoring results:
No ECM results for M27184319


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2005-09-03T00:00:00ANONYMOUSv4_computers2DF64FF54FC4E86E25.16
2012-03-18T14:49:00JJSeifriedJOE-PC780I2DF64FF54FC4E86E25.16


PRP results:
No PRP results for M27184319


P-1 factor-bounds graph:
B1 = 420000 (P-1 stage 1)
104
105
106
104
105
106
TF factor-bounds graph:
272
271
270
269
268
267
262
256
250
260
270
280
290
2100
Last modified: 2021-04-19T18:40:10+00:00