is 2 1190143 - 1
has 358269 decimal digits
takes 0.036 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LF214AD76A168556Fdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26724.966768.6567%300000100000000.03684.1568%25.003569.9596%1.3029%
PrimeNet2560.008162.5000%5000800000.00042.2662%0.008563.3498%0.8498%
GPU722600.129165.0000%5000280000.00030.8014%0.129365.2805%0.2805%
Difference+7+24.8376+3.6567%+295000+9972000+0.0366+3.3555%+24.8742+4.6791%+4.6791%

Known prime factors (1 factor, 70.0 bits, 0.00587916% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
119014311565898520058517917532269.970485903732579132
22 × 7 × 61667 × 281409907
2008-07-2161667281409907172.770.68441.2733

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-05-05T00:00:00Jocelyn Larouchev4_computers10001000---4.44667e-5--0.005%
2002-06-15T00:00:00ANONYMOUSv4_computers500001000000---0.005--1.753%
unknown30000010000000---0.037--4.157%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-11-04T00:00:00ANONYMOUSv4_computers21257--0.016--
2003-05-11T00:00:00ANONYMOUSv4_computers21258--0.032--
2022-04-12T20:41:59LordJuliusManual testing21261--0.258--
2022-04-12T20:41:59LordJuliusManual testing261262--0.258--
2022-04-12T20:41:59LordJuliusManual testing262263--0.825--
2022-04-12T20:41:59LordJuliusManual testing263264--1.650--


ECM factoring results:

Old Calculation Method

Total ECM effort:18.378 GHz-days
Estimated T-Level:25.344
DigitsB1CurvesCompleteFacMiss
2011000323 / 1003.2303.892%
2550000323 / 2801.15431.486%
3025000044 / 6400.06993.351%

New Calculation Method

Total ECM effort:18.378 GHz-days
Estimated T-Level:25.344
DigitsB1CompleteFacMiss
201100014.7310.000%
25500001.61319.937%
302500000.13187.717%
3510000000.00999.131%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
50000500000027910.28
25000025000000448.102


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-07-27T00:00:00ANONYMOUSv4_computersF214AD76A168556F0.036


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-29T11:45:47Oliver KruseGTX-2
1156589852005851791753
D15C103B019F4E__no
2017-10-17T19:01:08Oliver KruseGTX-2
1156589852005851791753
D15C103B019F4E__no
2018-01-02T19:44:12ATHec2-8x
1156589852005851791753
D15C103B019F4E__no


P-1 factor-bounds graph:
B1 = 300000, B2 = 10000000 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
B1 = 50000, B2 = 1000000 (P-1 stage 2)
B1 = 50000 (P-1 stage 1)
B1 = 1000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
107
108
109
TF factor-bounds graph:
267
264
263
262
261
258
257
250
260
270
280
290
2100
Last modified: 2022-04-12T20:41:59+00:00