is 2 63323077 - 1
has 19062146 decimal digits
takes 148.751 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27460.418264.8649%----60.418264.8649%
Target27460.418264.8649%400000140000003.88633.7858%64.304566.1950%
Difference----400000-14000000-3.8863-3.7858%-3.8863-1.3302%

Known prime factors (3 factors, 255.2 bits, 0.00040307% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
63323077351595523704795107505612374.896277620371878640
24 × 5 × 7 × 94153 × 5265373		2013-07-2094153526537367.7421.28041.8250
633230775072796059938333931986312478.7474005487651791095
5 × 181 × 257 × 2633 × 6540679		2013-07-20263365406791,790.11.22232.2670
63323077382407090098580920936268095023331101.59330194923258276040576508
22 × 3 × 7 × 19 × 229 × 593 × 743 × 138829 × 1350647		2013-07-2013882913506472.341e+90.69780.9624

4 Composite Factors:
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-07-20TheJudgerManual testing77255.236-297.5-0.000%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-11-17ANONYMOUSv4_computers21250--2.36865e-6--
2003-07-30ANONYMOUSv4_computers21259--0.001--
2022-03-30LordJuliusManual testing21263--0.025--
2009-02-17Wojciech Florekarmada2263264--0.031--
2009-09-06Andrey Kurgannikovwork-net264265--0.059--
2009-09-08lumingpc-luming265266--0.118--
2009-09-12Chris Vernieri117C_WORKSTATION266267--0.236--
2009-09-13Sturle Sundegiasha.ifi267268--0.472--
2009-11-14Sturle Sundegorro.ifi268269--0.944--
2011-12-29dabunnies269270--1.888--
2012-10-14Sid & AndyBo_Peep270271--3.776--
2013-05-15Brian LenhartManual testing271272--7.553--
2013-05-17AllRandomManual testing272273--15.11--
2013-07-04Jerry HallettManual testing273274--30.21--


ECM factoring results:
No ECM results for M63323077


Lucas-Lehmer results:
No L-L results for M63323077


PRP results:
No PRP results for M63323077


P-1 factor-bounds graph:
102
103
104
105
106
102
103
104
105
106
107
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
265
264
263
259
250
this exponent TF target: 74
TF double-checked to: 67.7
250
260
270
280
290
2100
2110
Last modified: 2023-03-25T13:08:14+00:00