is 2 823337 - 1
has 247850 decimal digits
takes 0.016 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26736.089670.1493%300000100000000.02403.9632%36.113674.1124%24.1124%
PrimeNet2400.000050.0000%80003200000.000722.7557%0.000772.7557%22.7557%
GPU722440.000054.5455%140005500000.001317.5075%0.001372.0529%17.5075%
Difference+23+36.0896+15.6038%+286000+9450000+0.0227-13.5443%+36.1124+2.0595%+2.0595%

Known prime factors (1 factor, 58.9 bits, 0.00715934% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
8233375550938651462727431858.946337100036283
34 × 17 × 59 × 61 × 251 × 271
2002-01-082512710.08487.300e-61.479e-5

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-17T18:52:23alpertronManual testing3000001000000012---0.024--3.963%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2002-01-08T00:00:00ANONYMOUSv4_computers??58.946180.0380.0340.080
2000-07-25T00:00:00ANONYMOUSv4_computers?255--0.006--
2001-02-04T00:00:00ANONYMOUSv4_computers?256--0.012--
2001-10-13T00:00:00ANONYMOUSv4_computers?257--0.023--


ECM factoring results:
Total ECM effort:11.478 GHz-days
Estimated T-Level:25.344
DigitsB1CurvesCompleteFacMiss
2011000325 / 1003.2503.815%
2550000325 / 2801.16131.261%
3025000044 / 6400.06993.351%

ECM Summary

B1B2factorcurvesGHz-days
5000050000002816.438
25000025000000445.040


Lucas-Lehmer results:
Exponent "823337" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-28T02:31:39Oliver KruseGTX-3
555093865146272743
2107089AA432BC__no
2017-10-14T02:04:34Oliver KruseThreadripper2107089AA432BC__no
2017-12-18T02:40:37ATHec2-1xf
555093865146272743
2107089AA432BC__no
2020-04-21T13:19:35Oliver KruseAddPrpType5
555093865146272743
5A8F6AF9331020__no


P-1 factor-bounds graph:
B1 = 300000, B2 = 10000000 (stage 2)
B1 = 300000 (stage 1)
101
102
103
104
105
106
101
102
103
104
105
106
107
TF factor-bounds graph:
267
257
256
255
2
250
260
270
280
290
2100
Last modified: 2020-04-21T13:19:35+00:00