is 2 6033901 - 1
has 1816386 decimal digits
takes 1.069 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L30F8EB8C0624CB3Fdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2674.924565.6716%11000022000000.05753.2269%4.982066.7794%1.1077%
PrimeNet2620.101862.9032%260006000000.01473.3327%0.116564.1396%1.2363%
GPU722662.447665.1515%400009000000.02232.4194%2.469965.9946%0.8431%
Difference+1+2.4769+0.5201%+70000+1300000+0.0352+0.8075%+2.5121+0.7847%+0.7847%

Known prime factors (1 factor, 108.7 bits, 0.00180215% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
603390154187445096739744058355607848804933108.74044902497651800836687870424
23 × 283 × 9472007749 × 2093881171309
2016-04-11947200774920938811713092.704e+1031,61754,753

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-03-26T00:00:00Sturle Sundev4_computers800001620000---0.042--2.842%
2013-02-22T20:40:00Squeeky_SquirrelP4_26001100002200000---0.058--3.227%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-05-16T00:00:00ANONYMOUSv4_computers21261--0.051--
1998-06-01T00:00:00ANONYMOUSv4_computers21262--0.102--
2016-02-23T16:39:16Mark RoseManual testing262263--0.163--
2014-09-12T10:05:00NesowaManual testing263264--0.325--
2014-09-16T04:24:00monstManual testing264265--0.619--
2015-10-05T21:26:51snme2pm1Manual testing265266--1.238--
2016-03-11T09:42:13Gordon SpenceManual testing266267--2.477--


ECM factoring results:

Old Calculation Method

Total ECM effort:1.347 GHz-days
Estimated T-Level:0.250
DigitsB1CurvesCompleteFacMiss
20110005 / 1000.05095.099%
25500005 / 2800.01898.227%

New Calculation Method

Total ECM effort:1.347 GHz-days
Estimated T-Level:0.250
DigitsB1CompleteFacMiss
20110000.16185.104%
25500000.01598.553%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.808
50000500000020.539


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-12-27T00:00:00garyhv4_computers30F8EB8C0624CB3F1.069
2000-11-15T00:00:00ANONYMOUSv4_computers30F8EB8C0624CB3F1.069


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T06:39:11kkmrkkblmbrbkManual testing
541874450967397440583556078488049
C9BEFAF9508E98__no
2018-09-16T02:46:22ANONYMOUS
541874450967397440583556078488049
C9BEFAF9508E98__no


P-1 factor-bounds graph:
B1 = 110000, B2 = 2200000 (P-1 stage 2)
B1 = 80000, B2 = 1620000 (P-1 stage 2)
B1 = 110000 (P-1 stage 1)
B1 = 80000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2018-09-16T02:46:22+00:00