is 2 10191319 - 1
has 3067893 decimal digits
takes 3.329 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L8A127D661398F2C9double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26911.714665.2174 %550009075000.04811.9354 %11.762665.8906 %
Target2685.848664.7059 %7000080000000.23782.6547 %6.086465.6428 %
Difference+1+5.8660+0.5115 %-15000-7092500-0.1898-0.7193 %+5.6762+0.2477 %

Known prime factors (1 factor, 65.0 bits, 0.00063805% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10191319375506457133048494412065.0251842285856880
24 × 5 × 7 × 19 × 73 × 2371879
2013-04-217323718791.07140.06120.1143

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-10-08Gordon Spencev4_computers55000907500--0.0482.198%
2013-04-21NesowaEPC2065.0250.1070.000%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-08-16ANONYMOUSv4_computers212640.193
2022-04-08James HeinrichManual testing264267
65.025
20
2022-01-24ViliamFManual testing267269


ECM factoring results:
No ECM results for M10191319


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-06-26ANONYMOUSv4_computers8A127D661398F2C93.329
2000-06-29ANONYMOUSv4_computers8A127D661398F2C93.329
2003-10-08Gordon Spencev4_computers37F61C0C52AB5E7D3.329
2004-03-26ANONYMOUSv4_computers53DF745FBE59CBBA3.329
2004-08-06Team Prime Ribv4_computers8A127D661398F2C93.329


PRP results:
dateuseridcompidcofactorsres64
2020-02-09Niels_Mache_NextcloudSuperDry-X
37550645713304849441
0641EFAFEF408012
2021-02-07Richard Thomasdjinn.pc
37550645713304849441
0641EFAFEF408012


CERT results:
dateuseridcompid
2021-02-14curtiscwcm202--04l


P-1 factor-bounds graph:
B1 = 55000, B2 = 907500 (P-1 stage 2)
B1 = 55000 (P-1 stage 1)
100
101
102
103
104
105
100
101
102
103
104
105
106
107
TF factor-bounds graph:
269
267
264
this exponent TF target: 68
TF double-checked to: 67
250
260
270
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Last modified: 2024-03-13T02:15:48+00:00