is 2 300497 - 1
has 90459 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
Actual26798.882671.6418 %10000006587182602037.015112.7663 %135.897775.2621 %
Target2440.000056.8182 %55007000000.000411.2461 %0.000561.6745 %
Difference+23+98.8826+14.8236 %+994500+65871126020+37.0146+1.5202%+135.8972+13.5876 %

Known prime factors (4 factors, 262.1 bits, 0.08720949% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
30049761902383825.883103
103
-11031.488e-116.761e-81.066e-7
3004971526954168554256571857.083254071449724
22 × 219839 × 288929
2013-12-232198392889290.06390.00230.0046
3004971548164858077668822630526072787.0007257600717823750124399
257600717823750124399
2017-08-241257600717823750124399104,303,6771.447e+112.703e+11
30049752861846088496935519311070872892.0948795736078645865935319
337 × 461 × 223063 × 253812977909
2015-11-062230632538129779093.338e+9142.59266.31

11 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-02-06Lisander ViaeneManual testing5000050000
skipped known factor: 61902383
--0.0019.759%
2023-03-13Denial140i5-8400100000065871826020
skipped known factor: 61902383
skipped known factor: 152695416855425657
--43.7448.846%


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


Trial Factoring results:
5758596061626364656667
No TF results for M300497


ECM factoring results:
Total ECM effort:14.246 GHz-days
Estimated T-Level:27.721
DigitsB1CompleteFacMiss
201100039.0730.000%
25500005.3510.474%
302500000.54458.031%
3510000000.04495.715%
4030000000.00399.711%


ECM Summary

B1B2factorcurvesGHz-days
10.031
5000050000002632.006
500005000000240.183
250000250000001264.805
25000025000000160.598
250000367500001506.490
25000021019845010.133


Lucas-Lehmer results:
No L-L results for M300497


PRP results:
dateuseridcompidcofactorsres64
2017-09-22Oliver KruseOllaptop0C02DBB817DDEE__
2017-10-12Oliver KruseGTX-2
61902383
152695416855425657
154816485807766882263052607
5286184608849693551931107087
0C02DBB817DDEE9A
2017-12-11ATHxps
61902383
152695416855425657
154816485807766882263052607
5286184608849693551931107087
0C02DBB817DDEE9A
2020-04-17Oliver KruseAddPrpType5
61902383
152695416855425657
154816485807766882263052607
5286184608849693551931107087
AB5583A8D5955A10


CERT results:
No CERT results for M300497


P-1 factor-bounds graph:
B1 = 1000000, B2 = 65871826020 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 50000 (P-1 stage 1)
100
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106
100
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1010
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1016
1017
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1020
1021
TF factor-bounds graph:
this exponent TF target: 44
TF double-checked to: 67
ECM T-Level=27.72 ~= 75-bit
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2100
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Last modified: 2024-02-09T03:30:02+00:00