is 2 23517601 - 1
has 7079504 decimal digits
takes 19.075 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L4B6CEAEA782757FBdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27010.160564.2857%1200000792000006.40947.4806%16.569966.9574%2.6716%
PrimeNet2660.628062.1212%10000036000000.34194.7679%0.969963.9273%1.8060%
GPU7227010.160564.2857%16000045000000.46633.4851%10.626865.5304%1.2447%
Difference---+1040000+74700000+5.9431+3.9955%+5.9431+1.4270%+1.4270%

Known prime factors (2 factors, 195.6 bits, 0.00083192% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
235176012737135000118023411541771832787.8235819332933061546991
3 × 211 × 587 × 415559 × 37687619
2021-05-07415559376876192,403,2662.87714.5104
2351760128734458329471397726908658692495133107.8246109138923113670847402475
52 × 7 × 83 × 1193 × 24749 × 1034597 × 13768751
2021-05-071034597137687516.968e+92.03282.4764

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
2351760178650091603029033018091227770166444001988216065464
577593033
59195.647
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-03-08T00:00:00ANONYMOUSv4_computers340000340000---0.400--1.743%
2021-05-07T04:37:17firejugglerMaison12000007920000059195.6476.40938.1512.827.481%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-05-13T15:03:46firejugglerMaison5000002350000065--2.338


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-09-10T00:00:00Net_Forcev4_computers21256--0.000--
2003-07-13T00:00:00ANONYMOUSv4_computers21260--0.007--
2003-10-14T00:00:00ANONYMOUSv4_computers21267--1.263--
2016-06-10T01:52:44VictordeHollanderManual testing267268--1.271--
2018-01-05T17:22:17VictordeHollanderManual testing268269--2.542--
2018-08-26T21:57:25ramgeisManual testing269270--5.084--


ECM factoring results:
No ECM results for M23517601


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-12-13T00:00:00ANONYMOUSv4_computers4B6CEAEA782757FB19.08
2010-08-05T16:25:00gkramerOverLord4B6CEAEA782757FB19.08


PRP results:
No PRP results for M23517601


P-1 factor-bounds graph:
B1 = 1200000, B2 = 79200000 (P-1 stage 2)
B1 = 1200000 (P-1 stage 1)
B1 = 340000 (P-1 stage 1)
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104
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108
TF factor-bounds graph:
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2110
Last modified: 2021-05-13T15:03:46+00:00