is 2 3036643 - 1
has 914121 decimal digits
takes 0.258 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LA666BAE9AD8173A7double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26819.628567.6471%10000001199121000.92297.4651%20.551570.0622%2.4152%
PrimeNet2600.050663.3333%120002200000.00292.5208%0.053564.2576%0.9243%
GPU722641.172165.6250%130002200000.00301.4297%1.175166.1165%0.4915%
Difference+4+18.4564+2.0221%+987000+119692100+0.9200+6.0354%+19.3764+3.9458%+3.9458%

Known prime factors (1 factor, 63.7 bits, 0.00209692% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3036643147368063145184498572063.6762426496350496
25 × 3 × 659 × 38355089
2009-04-15659383550890.70700.25800.4817

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-12-23T00:00:00Team Prime Ribv4_computers1000010000---0.001--0.147%
2004-02-07T00:00:00ANONYMOUSv4_computers2048204800---0.002--0.249%
2020-12-19T07:43:12Jocelyn LaroucheManual testing151832151832---0.019--1.079%
2021-01-14T02:35:50Jocelyn LaroucheManual testing30366430366436---0.056--3.279%
2022-01-26T12:50:57Jocelyn LaroucheManual testing1000000119912100-
skipped known factor: 14736806314518449857
--0.923--7.465%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-04-15T00:00:00ANONYMOUSv4_computers21260--0.051--
2009-02-05T22:24:00Jayson Kingatlas260261--0.051--
2022-03-11T19:04:09LordJuliusManual testing261263--0.424--
2022-03-11T19:04:09LordJuliusManual testing26326463.676200.1810.5250.368
2022-03-11T19:04:09LordJuliusManual testing264265--1.230--
2022-03-11T19:04:09LordJuliusManual testing265266--2.461--
2022-03-11T19:04:09LordJuliusManual testing266267--4.922--
2021-05-17T16:57:20Jocelyn LaroucheManual testing267268--9.84--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.000 GHz-days
DigitsB1CurvesCompleteFacMiss

New Calculation Method

Total ECM effort:0.000 GHz-days
DigitsB1CompleteFacMiss


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-09-14T00:00:00ANONYMOUSv4_computersA666BAE9AD8173A70.258


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-28T02:18:11Oliver KruseGTX-0
14736806314518449857
2E48716A21018A__no
2017-12-10T19:42:21kkmrkkblmbrbkc4.xlarge
14736806314518449857
2E48716A21018A__no


P-1 factor-bounds graph:
B1 = 1000000, B2 = 119912100 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 303664, B2 = 3036643 (P-1 stage 2)
B1 = 303664 (P-1 stage 1)
B1 = 151832 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 10000 (P-1 stage 1)
B1 = 2048 (P-1 stage 1)
101
102
103
104
105
106
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
268
267
266
265
264
263
261
260
250
260
270
280
290
2100
Last modified: 2022-03-11T19:04:09+00:00