is 2 62319203 - 1
has 18759950 decimal digits
takes 146.392 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
Actual27330.694364.3836%585000108225003.89244.1610%34.586765.8656%1.4820%
PrimeNet2703.834362.8571%260000120000003.06435.1459%6.898664.7685%1.9113%
GPU7227461.391464.8649%400000130000003.70073.7242%65.092266.1734%1.3085%
Difference-1-30.6971-0.4813%+185000-2177500+0.1917+0.4368%-30.5054-0.3078%-0.3078%

Known prime factors (1 factor, 75.2 bits, 0.00012070% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
62319203440590189626383119775992375.222353494724271733
11 × 41 × 358291 × 2187613
2013-04-033582912187613199.671.55992.4837

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-04-03T09:55:00Jwb52zClay585000108225002375.2223.892292.87.7854.161%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-06-30T00:00:00ANONYMOUSv4_computers21259--0.001--
2003-07-06T00:00:00ANONYMOUSv4_computers21259--0.001--
2022-03-30T00:00:40LordJuliusManual testing21263--0.026--
2008-12-31T09:44:00DerekDerek_Desk263264--0.032--
2009-08-12T15:21:00Sturle Sundedittersdorf.ifi264265--0.060--
2009-08-13T21:08:00Sturle Sundedittersdorf.ifi265266--0.120--
2009-08-26T14:47:00FCG PrimesPortege_1000266267--0.240--
2009-08-29T22:24:00eon_blue_apocalypseConstantine267268--0.480--
2009-09-03T09:43:00eon_blue_apocalypseConstantine268269--0.959--
2012-08-10T20:02:00ktonyManual testing269273--28.78--


ECM factoring results:
No ECM results for M62319203


Lucas-Lehmer results:
No L-L results for M62319203


PRP results:
No PRP results for M62319203


P-1 factor-bounds graph:
B1 = 585000, B2 = 10822500 (P-1 stage 2)
B1 = 585000 (P-1 stage 1)
104
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104
105
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108
TF factor-bounds graph:
273
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267
266
265
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263
259
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2100
Last modified: 2022-03-30T00:00:40+00:00