is 2 97952927 - 1
has 29486770 decimal digits
takes 373.582 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
Actual278624.958465.3846%700000119000007.24562.8055%632.204166.3557%0.9711%
PrimeNet2729.763262.5000%400000200000008.11755.1863%17.880764.4448%1.9448%
GPU72276156.238364.4737%600000200000009.16323.7213%165.401565.7957%1.3220%
Difference+2+468.7202+0.9109%+100000-8100000-1.9176-0.9158%+466.8026+0.5600%+0.5600%

Known prime factors (1 factor, 81.5 bits, 0.00008325% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
9795292735393631476258063859044172581.55018066653320251504
24 × 3 × 41 × 1747 × 2671 × 1967369
2020-04-29267119673697,298.20.60671.1071

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-04-29T23:20:55Jwb52zClay700000119000002581.5507.246747.214.492.805%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2011-01-04T11:20:00Architects Cubedm1_62264265--0.038--
2014-02-01T02:15:00sasakiManual testing265267--0.229--
2014-05-26T14:30:00CSLatDDikenny-24267268--0.305--
2014-05-30T10:34:00CSLatDDikenny-24268269--0.610--
2014-06-01T11:38:00Preben SManual testing269270--1.221--
2014-06-16T15:50:00Preben SManual testing270271--2.441--
2018-12-28T18:31:08Niels_Mache_NextcloudManual testing271272--4.883--
2019-03-10T17:14:02Niels_Mache_NextcloudManual testing272273--9.77--
2019-11-08T13:03:53bayanneManual testing273274--19.53--
2020-01-22T19:31:51TheJudgerManual testing274275--39.06--
2020-01-22T19:31:51TheJudgerManual testing275276--78.12--
2020-02-02T21:39:49TheJudgerManual testing276277--156.2--
2020-04-11T15:55:28SRBaseManual testing277278--312.5--


ECM factoring results:
No ECM results for M97952927


Lucas-Lehmer results:
No L-L results for M97952927


PRP results:
No PRP results for M97952927


P-1 factor-bounds graph:
B1 = 700000, B2 = 11900000 (P-1 stage 2)
B1 = 700000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2020-04-29T23:20:55+00:00