is 2 1190023 - 1
has 358233 decimal digits
takes 0.036 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LEBEB2E6F3B7C2BCFdouble-checked
PRPBF59464A39045CA8PRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual269100.323169.5652%36200001309025300.46937.1382%100.792471.7377%2.1725%
PrimeNet2560.008162.5000%5000800000.00042.2661%0.008563.3498%0.8498%
GPU722600.129165.0000%5000280000.00030.8013%0.129365.2805%0.2805%
Difference+9+100.1940+4.5652%+3615000+130874530+0.4691+6.3369%+100.6631+6.4573%+1.8920%

Known prime factors:
No known factors for M1190023

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-04-07T00:00:00Jocelyn Larouchev4_computers15000217500---0.001--0.564%
2002-06-15T00:00:00ANONYMOUSv4_computers500001000000---0.005--1.342%
2012-09-18T05:38:00kurlysmile50000010000000---0.045--3.640%
2016-03-16T11:06:00Jocelyn LaroucheManual testing36000006480000012---0.308--6.345%
2018-03-13T11:58:32Jocelyn Larouchelow 4M36200006480000012---0.309--6.347%
2018-03-15T11:41:46Jocelyn Larouchelow 4M362000012960000012---0.466--7.127%
2018-11-13T13:00:09Jocelyn LaroucheManual testing36200001309025306---0.469--7.138%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-11-04T00:00:00ANONYMOUSv4_computers21257--0.016--
2003-05-11T00:00:00ANONYMOUSv4_computers21258--0.032--
2016-02-23T16:28:24Mark RoseManual testing258260--0.097--
2009-02-18T00:00:00Sturle Sundegouache.ifi260261--0.129--
2012-09-09T09:07:00AxelssonManual testing261262--0.258--
2012-11-24T17:09:00dbaughManual testing262263--0.825--
2015-01-03T05:42:00Matthias WurtingerManual testing263264--1.650--
2015-01-04T15:03:00lycornManual testing264265--3.140--
2015-10-01T08:53:28ramgeisManual testing265266--6.279--
2018-09-10T04:11:54YxinityManual testing266267--12.56--
2020-03-09T00:23:36Gordon SpenceManual testing267268--25.12--
2021-10-31T01:52:12MadPooManual testing268269--50.24--


ECM factoring results:
Total ECM effort:18.451 GHz-days
Estimated T-Level:25.658
DigitsB1CompleteFacMiss
201100014.8080.000%
25500001.62019.795%
302500000.13287.678%
3510000000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
50000500000028110.35
25000025000000448.102


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-07-27T00:00:00ANONYMOUSv4_computersEBEB2E6F3B7C2BCF0.036
2016-06-01T18:49:36MadPooManual testingEBEB2E6F3B7C2BCF0.036


PRP results:
dateuseridcompidcofactorsres64PRP
2020-11-04T22:41:50Ethan O'ConnorHighland2020BF59464A39045CA8no


P-1 factor-bounds graph:
B1 = 3620000, B2 = 130902530 (P-1 stage 2)
B1 = 3620000, B2 = 129600000 (P-1 stage 2)
B1 = 3620000, B2 = 64800000 (P-1 stage 2)
B1 = 3600000, B2 = 64800000 (P-1 stage 2)
B1 = 3620000 (P-1 stage 1)
B1 = 3600000 (P-1 stage 1)
B1 = 500000, B2 = 10000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
B1 = 50000, B2 = 1000000 (P-1 stage 2)
B1 = 50000 (P-1 stage 1)
B1 = 15000, B2 = 217500 (P-1 stage 2)
B1 = 15000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-10-31T01:52:12+00:00