is 2 64101173 - 1
has 19296376 decimal digits
takes 155.490 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
Actual27459.684864.8649%570000102600003.86173.7342%63.546566.1769%1.3120%
PrimeNet2703.727762.8571%280000120000003.23075.2146%6.958464.7940%1.9369%
GPU7227459.684864.8649%400000140000004.01313.7917%63.697966.1971%1.3322%
Difference---+170000-3740000-0.1513-0.0575%-0.1513-0.0202%-0.0202%

Known prime factors (1 factor, 95.3 bits, 0.00014873% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
64101173500214217690477348725065049612995.337390175557076371557760
27 × 3 × 5 × 19 × 37 × 863 × 114613 × 2922529
2013-09-031146132922529180,445,4790.94121.0460

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-09-03T18:47:00Jwb52zClay570000102600002995.3373.862311.07.7233.734%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-11-17T00:00:00ANONYMOUSv4_computers21250--2.33990e-6--
2003-08-25T00:00:00ANONYMOUSv4_computers21259--0.001--
2004-01-18T00:00:00AxelFoxv4_computers21260--0.002--
2022-03-30T08:07:46LordJuliusManual testing260263--0.023--
2009-03-06T02:01:00Sturle Sundegollumilla.ifi263264--0.031--
2009-03-12T10:16:00Lt.Cmdr.Datas3-pc1264265--0.058--
2009-03-18T10:31:00Lt.Cmdr.Datas3-pc1265266--0.117--
2009-03-24T13:49:00Lt.Cmdr.Datas3-pc1266267--0.233--
2009-09-27T22:14:00Lukin DmitryDmitry267268--0.466--
2009-10-11T21:20:00mojojojohhDeeDees_P5Q_DLX268269--0.933--
2012-01-26T16:40:00america64Manual testing269270--1.865--
2012-05-31T17:45:00vats09AX2_64270271--3.730--
2013-08-06T04:38:00RichD0Manual testing271272--7.461--
2013-08-30T01:45:00gcardonaManual testing272273--14.92--
2013-08-30T01:45:00gcardonaManual testing273274--29.84--


ECM factoring results:
No ECM results for M64101173


Lucas-Lehmer results:
No L-L results for M64101173


PRP results:
No PRP results for M64101173


P-1 factor-bounds graph:
B1 = 570000, B2 = 10260000 (P-1 stage 2)
B1 = 570000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-03-30T08:07:46+00:00