is 2 1695899 - 1
has 510517 decimal digits
takes 0.080 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
Actual26717.521068.6567%500000150000000.08805.0223%17.609170.2309%1.5741%
PrimeNet2570.011363.1579%80001300000.00102.7300%0.012364.1637%1.0058%
GPU722610.181165.5738%70001000000.00081.3006%0.182066.0215%0.4478%
Difference+6+17.3399+3.0829%+493000+14900000+0.0872+3.7217%+17.4271+4.2093%+4.2093%

Known prime factors (2 factors, 117.4 bits, 0.00692381% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
169589919332938080893111650.780569990845
5 × 719 × 158551
-7191585510.00010.00060.0011
16958991150485752696550102012166.64133919642404900
22 × 32 × 52 × 72 × 19 × 40481731
2018-03-03494048173112.7140.15050.2811

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
169589922242269819832106482367829402406151136117.421
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-17T19:18:51alpertronManual testing5000001500000012-
skipped known factor: 1933293808089311
--0.088--5.022%


Trial Factoring results:
No TF results for M1695899


ECM factoring results:

Old Calculation Method

Total ECM effort:15.451 GHz-days
Estimated T-Level:24.643
DigitsB1CurvesCompleteFacMiss
2011000260 / 1002.6007.331%
2550000260 / 2800.92939.446%

New Calculation Method

Total ECM effort:15.451 GHz-days
Estimated T-Level:24.643
DigitsB1CompleteFacMiss
201100010.0000.005%
25500000.92539.643%
302500000.05894.331%
3510000000.00399.728%


ECM Summary

B1B2factorcurvesGHz-days
50000500000025715.27
50000500000030.178


Lucas-Lehmer results:
No L-L results for M1695899


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-30T15:23:24alpertronManual testing
1933293808089311
08F3ACFB84EA9B__no
2017-10-18T15:29:22Oliver KruseThreadripper
1933293808089311
08F3ACFB84EA9B__no
2018-03-08T08:02:03Oliver KruseGTX-3
1933293808089311
115048575269655010201
D48F548E816B64__no
2018-03-08T19:24:23kkmrkkblmbrbkc5.xlarge
1933293808089311
115048575269655010201
D48F548E816B64__no


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
267
250
260
270
280
290
2100
Last modified: 2020-02-17T11:30:45+00:00