is 2 100395877 - 1
has 30222171 decimal digits
takes 382.899 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
Actual276152.436564.4737%7230007230003.99831.4959%156.434865.0051%0.5314%
PrimeNet2729.525662.5000%400000200000008.11755.2016%17.643164.4506%1.9506%
GPU72276152.436564.4737%6500002200000010.02733.8423%162.463865.8387%1.3650%
Difference---+73000-21277000-6.0290-2.3463%-6.0290-0.8336%-0.8336%

Known prime factors (1 factor, 78.6 bits, 0.00007826% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1003958774482530957427777647685292478.5692232427810470632
23 × 797 × 1459 × 5179 × 46337
2020-10-145179463371,128.70.04100.0583

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-10-14T17:11:41Jwb52zClay7230007230002478.5693.998765.87.9971.496%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-01-03T23:14:001997rj7Manual testing263264--0.020--
2010-08-12T20:48:00RichardUNKNOWN264265--0.037--
2011-02-12T09:13:00Craig MeyersManual testing265266--0.074--
2011-03-15T19:56:00Craig 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--
2020-08-12T11:44:50penluManual testing274275--38.11--
2020-08-12T11:44:50penluManual testing275276--76.22--


ECM factoring results:
No ECM results for M100395877


Lucas-Lehmer results:
No L-L results for M100395877


PRP results:
No PRP results for M100395877


P-1 factor-bounds graph:
B1 = 723000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
276
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273
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271
270
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2100
Last modified: 2020-10-14T17:11:41+00:00