is 2 89067427 - 1
has 26811968 decimal digits
takes 300.273 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276171.824864.4737%715000130487506.78013.4555%178.604965.7013%1.2276%
PrimeNet2715.367661.9718%360000170000006.19165.4115%11.559264.0297%2.0579%
GPU7227585.911464.0000%600000200000008.09994.0520%94.011365.4587%1.4587%
Difference+1+85.9134+0.4737%+115000-6951250-1.3198-0.5964%+84.5936+0.2426%+0.2426%

Known prime factors (1 factor, 78.8 bits, 0.00008847% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
890674275243955620328038668760892478.7952943812231337972
22 × 3 × 2003 × 121067 × 1011631
2018-10-0812106710116311,305.00.82901.2045

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2018-10-08T04:40:02Jwb52zClay715000130487502478.7956.780600.513.563.456%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-11-03T09:20:00Architects Cubeda3_bu2264265--0.042--
2013-03-14T16:07:00RiplashSteve265266--0.084--
2013-03-17T05:25:00albin_pouillesprod-2266267--0.168--
2013-03-18T02:54:00Florimond C.ichthys1267268--0.336--
2013-03-20T09:23:00Paw-PCi7_3.1268269--0.671--
2013-03-22T14:40:00ITSCP_-_Server3269270--1.342--
2013-11-25T08:24:00Per Jessenbeaufort3270271--2.685--
2017-06-17T07:15:08monstManual testing271272--5.370--
2017-08-18T19:02:41ANONYMOUSManual testing272273--10.74--
2017-08-18T19:02:41ANONYMOUSManual testing273274--21.48--
2018-09-12T13:41:23RichD0Manual testing274275--42.96--
2018-09-15T16:10:27Strolling JellyfishManual testing275276--85.91--


ECM factoring results:
No ECM results for M89067427


Lucas-Lehmer results:
No L-L results for M89067427


PRP results:
No PRP results for M89067427


P-1 factor-bounds graph:
B1 = 715000, B2 = 13048750 (P-1 stage 2)
B1 = 715000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2018-10-08T04:40:02+00:00