is 2 302507 - 1
has 91064 decimal digits
takes 0.002 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
Actual26798.225671.6418 %10000000206662045590116.195617.3439 %214.421276.5602 %
Target2440.000056.8182 %55007500000.000511.4058 %0.000561.7434 %
Difference+23+98.2255+14.8236 %+9994500+206661295590+116.1952+5.9380%+214.4207+14.8168 %

Known prime factors (3 factors, 149.4 bits, 0.04937698% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
30250765946527825.975109
109
-11091.478e-117.098e-81.100e-7
302507128867983926.941213
3 × 71
2008-07-213712.955e-116.913e-87.888e-8
3025071084321004101528123507528961993096.453179222464951476845743657
23 × 2521 × 8865149 × 348662889571
2017-10-3188651493486628895715.305e+10195.96365.83

4 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-02-06Lisander ViaeneManual testing5000050000
skipped known factor: 65946527
skipped known factor: 128867983
--0.0019.768%
2023-03-15Denial140i5-8400100000065871826020
skipped known factor: 65946527
skipped known factor: 128867983
--43.7448.862%
2024-02-21Denial140i5-84001000000010000000
skipped known factor: 65946527
skipped known factor: 128867983
--0.10125.595%
2024-02-23Denial140i5-840010000000206662045590
skipped known factor: 65946527
skipped known factor: 128867983
--113.954.413%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-04-24nordisweet1610000000101000000027--0.693
2021-04-30nordisweet1610000000101000000065--0.693


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-07-21J FeitsmaManual testing??
26.941
9


ECM factoring results:
Total ECM effort:14.080 GHz-days
Estimated T-Level:27.713
DigitsB1CompleteFacMiss
201100039.1010.000%
25500005.3430.478%
302500000.54358.125%
3510000000.04495.732%
4030000000.00399.712%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002912.220
25000025000000772.937
25000025000000652.431
250000367500001506.492


Lucas-Lehmer results:
No L-L results for M302507


PRP results:
dateuseridcompidcofactorsres64
2017-09-22Oliver KruseDoppelherz
65946527
128867983
A770883074F7B50A
2017-09-24Oliver KruseManual testing
65946527
128867983
A770883074F7B50A
2017-10-12Oliver KruseGTX-2
65946527
128867983
A770883074F7B50A
2017-11-01Oliver KruseGTX-1
65946527
128867983
108432100410152812350752896199
77E54706D094A0E9
2017-11-01ATHec2-1xh
65946527
128867983
108432100410152812350752896199
77E54706D094A0E9


CERT results:
No CERT results for M302507


P-1 factor-bounds graph:
B1 = 10000000, B2 = 206662045590 (P-1 stage 2)
B1 = 1000000, B2 = 65871826020 (P-1 stage 2)
B1 = 10000000 (P-1 stage 1)
B1 = 1000000 (P-1 stage 1)
B1 = 50000 (P-1 stage 1)
100
101
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105
106
107
100
101
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103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
this exponent TF target: 44
TF double-checked to: 67
ECM T-Level=27.71 ~= 75-bit
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Last modified: 2024-03-03T02:29:32+00:00