is 2 77037731 - 1
has 23190668 decimal digits
takes 217.204 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
Actual27449.662263.5135%6850006850002.80041.7681%52.462664.1586%0.6451%
PrimeNet2703.101761.4286%340000160000004.87805.7501%7.979863.6464%2.2179%
GPU7227449.662263.5135%500000180000005.94204.1968%55.604265.0448%1.5313%
Difference---+185000-17315000-3.1416-2.4286%-3.1416-0.8861%-0.8861%

Known prime factors (1 factor, 75.9 bits, 0.00009855% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
77037731716322709155607543564972375.923464916801064408
23 × 7 × 11 × 31 × 2551 × 2963 × 3221
2015-04-2929633221172.170.01220.0247

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2015-04-29T14:07:00guruw16850006850002375.9232.800434.45.6011.768%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-08-10T00:00:00ANONYMOUSv4_computers21253--1.55758e-5--
2003-12-02T00:00:00ANONYMOUSv4_computers21261--0.004--
Missing TF 61 - 62
Missing TF 62 - 63
Missing TF 63 - 64
Missing TF 64 - 65
2010-09-25T00:39:00Choi4KANG4study01265266--0.097--
2010-09-30T16:04:00Shintarou Sakaiat266267--0.194--
2010-10-11T00:55:00Simon DennisDella267268--0.388--
2010-11-01T13:12:00ANONYMOUS268269--0.776--
2011-01-05T16:34:00JaeckelH24FC011269270--1.552--
2013-01-07T17:24:00KayJongsmaHenk270271--3.104--
2014-09-08T06:11:00ChuckManual testing271272--6.208--
2014-09-08T07:12:00ChuckManual testing272273--12.42--
2014-09-08T09:14:00ChuckManual testing273274--24.83--


ECM factoring results:
No ECM results for M77037731


Lucas-Lehmer results:
No L-L results for M77037731


PRP results:
No PRP results for M77037731


P-1 factor-bounds graph:
B1 = 685000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
261
253
250
260
270
280
290
2100
Last modified: 2015-04-29T14:07:00+00:00