is 2 100396031 - 1
has 30222217 decimal digits
takes 382.899 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP8DD479F48B0BD836verified PRP

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276152.436264.4737%840000172200009.58063.7836%162.016865.8179%1.3442%
PrimeNet2729.525662.5000%400000200000008.11755.2016%17.643164.4506%1.9506%
GPU72276152.436264.4737%6500002200000010.02733.8423%162.463565.8387%1.3650%
Difference---+190000-4780000-0.4467-0.0587%-0.4467-0.0209%-0.0209%

Known prime factors:
No known factors for M100396031

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-10-13T08:47:21Ben Deloi-0b3e4c76f246f09fb8400001722000012---9.58--3.784%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-01-03T23:14:001997rj7Manual testing263264--0.020--
2010-08-12T21:19:00RichardUNKNOWN264265--0.037--
2011-02-12T08:50:00Craig MeyersManual testing265266--0.074--
2011-03-15T20:36:00Craig MeyersManual testing266267--0.149--
2013-08-21T22:57:00David CampeauManual testing267268--0.298--
2014-03-22T15:16:00SMoffatManual testing268269--0.595--
2014-03-24T15:28:00Preben SManual testing269270--1.191--
2014-06-01T15:28:00La GüiraManual testing270271--2.382--
2014-06-01T15:28:00La GüiraManual testing271272--4.764--
2014-06-01T15:28:00La GüiraManual testing272273--9.53--
2014-06-01T15:28:00La GüiraManual testing273274--19.05--
2020-08-12T12:51:11penluManual testing274275--38.11--
2020-08-12T12:51:11penluManual testing275276--76.22--


ECM factoring results:
No ECM results for M100396031


Lucas-Lehmer results:
No L-L results for M100396031


PRP results:
dateuseridcompidcofactorsres64PRP
2020-10-14T14:02:03Ben Deloi-0b3e4c76f246f09fb8DD479F48B0BD836no


P-1 factor-bounds graph:
B1 = 840000, B2 = 17220000 (P-1 stage 2)
B1 = 840000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2020-10-14T14:02:03+00:00