is 2 1745011 - 1
has 525301 decimal digits
takes 0.095 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26717.027968.6567%500000150000000.10155.0396%17.129470.2363%1.5796%
PrimeNet2570.011063.1579%80001400000.00122.8010%0.012264.1898%1.0319%
GPU722610.176065.5738%80001100000.00111.4118%0.177166.0598%0.4860%
Difference+6+16.8519+3.0829%+492000+14890000+0.1004+3.6278%+16.9523+4.1765%+4.1765%

Known prime factors (2 factors, 117.4 bits, 0.00672754% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1745011533973367928.992153
32 × 17
-9172.117e-117.422e-71.441e-6
17450114095170290314430488869173612788.404117339383256450259880
23 × 5 × 2933484581411256497
2020-06-018293348458141125649762,670,7161.257e+102.348e+10

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
174501121867118683575639368289286550392448736117.396
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-16T12:34:53alpertronManual testing5000001500000012-
skipped known factor: 533973367
--0.101--5.040%


Trial Factoring results:
No TF results for M1745011


ECM factoring results:

Old Calculation Method

Total ECM effort:19.719 GHz-days
DigitsB1CurvesCompleteFacMiss
2011000287 / 1002.8705.589%
2550000287 / 2801.02535.814%

New Calculation Method

Total ECM effort:19.719 GHz-days
DigitsB1CompleteFacMiss
20110009.2580.010%
25500000.83743.312%
302500000.05294.978%
3510000000.00299.764%


ECM Summary

B1B2factorcurvesGHz-days
50000500000025117.25
500005000000362.474


Lucas-Lehmer results:
No L-L results for M1745011


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-30T15:15:47alpertronManual testing
533973367
B22258E5010593__no
2017-10-19T15:43:17Oliver KruseThreadripper
533973367
B22258E5010593__no
2020-06-01T03:34:20CrypticCluecruncher
533973367
409517029031443048886917361
B7C9E2FBCB032C50no
2020-06-02T22:29:57daveward2005Davy
533973367
409517029031443048886917361
B7C9E2FBCB032C50no


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2020-06-15T09:59:13+00:00