is 2720677-1
has 216,946 decimal digits
takes 0.014 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-L0F656A18A701E9__double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2632.214668.2540%500,00015,000,0000.03746.6471%2.252074.9011%24.9011%
PrimeNet2400.000050.0000%6,500260,0000.000621.5417%0.000671.5417%21.5417%
GPU722440.000054.5455%12,000450,0000.001016.5549%0.001071.1004%16.5549%
Difference+19+2.2146+13.7085%+488,000+14,550,000+0.0363-9.9078%+2.2509+3.8007%+3.8007%

Known prime factors (1 factor, 73.8 bits, 0.01023736% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
720677161986347679586152787772373.77811238484624844844
22 × 3 × 3617 × 48437 × 5345653
48,4375,345,6532003-06-172,909.30.00980.0158

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-01-02T00:00:00ANONYMOUSv4_computers2,000200,000---0.000--0.462%
2002-01-28T00:00:00ANONYMOUSv4_computers4,096409,600---0.001--0.886%
2002-03-16T00:00:00ANONYMOUSv4_computers8,192819,200---0.002--1.474%
2002-05-11T00:00:00ANONYMOUSv4_computers16,3841,638,400---0.003--2.238%
2002-07-14T00:00:00ANONYMOUSv4_computers32,7683,276,800---0.006--3.166%
2002-11-09T00:00:00ANONYMOUSv4_computers65,5376,553,700---0.012--4.239%
2016-03-17T18:50:46alpertronManual testing500,00015,000,00012---0.037--6.647%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-06-17T00:00:00ANONYMOUSv4_computers??73.77823255.10.030532.8
2003-08-25T00:00:00ANONYMOUSv4_computers??73.77823255.10.030532.8
1999-12-15T00:00:00ANONYMOUSv4_computers253254--0.002--
2000-05-24T00:00:00ANONYMOUSv4_computers?255--0.007--
2000-05-31T00:00:00ANONYMOUSv4_computers?255--0.007--
2001-04-01T00:00:00ANONYMOUSv4_computers?256--0.013--
2001-10-20T00:00:00ANONYMOUSv4_computers?257--0.027--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,0002816.355
250,00025,000,000444.975


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2003-02-24T00:00:00ANONYMOUSv4_computers0F656A18A701E9__0.014


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-27T16:46:09Oliver KruseGTX-1
16198634767958615278777
5470DA59A6A67B__no
2017-09-28T09:45:36Oliver KruseManual testing
16198634767958615278777
5470DA59A6A67B__no
2017-11-09T04:42:25kkmrkkblmbrbkc4.large
16198634767958615278777
5470DA59A6A67B__no
2020-04-20T18:18:40Oliver KruseAddPrpType5
16198634767958615278777
933D9AD32013B1__no


P-1 factor-bounds graph:
B1 = 500,000, B2 = 15,000,000 (stage 2)
B1 = 500,000 (stage 1)
B1 = 65,537, B2 = 6,553,700 (stage 2)
B1 = 32,768, B2 = 3,276,800 (stage 2)
B1 = 16,384, B2 = 1,638,400 (stage 2)
B1 = 65,537 (stage 1)
B1 = 8,192, B2 = 819,200 (stage 2)
B1 = 32,768 (stage 1)
B1 = 4,096, B2 = 409,600 (stage 2)
B1 = 16,384 (stage 1)
B1 = 2,000, B2 = 200,000 (stage 2)
B1 = 8,192 (stage 1)
B1 = 4,096 (stage 1)
B1 = 2,000 (stage 1)
102
103
104
105
106
102
103
104
105
106
107
108
TF factor-bounds graph:
263
257
256
255
254
2
250
260
270
280
290
2100
Last modified: 2020-04-20T18:18:40+00:00