is 2 1300457 - 1
has 391477 decimal digits
takes 0.041 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26722.848868.6567%500000150000000.05934.8636%22.908173.5203%11.0203%
PrimeNet2560.007462.5000%60001000000.00052.5938%0.007965.0938%2.5938%
GPU722600.118165.0000%5500360000.00030.9350%0.118465.9350%0.9350%
Difference+7+22.7307+3.6567%+494500+14964000+0.0590+3.9285%+22.7897+7.5853%+7.5853%

Known prime factors (3 factors, 169.0 bits, 0.01299300% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1300457100577344391133.2283867
3 × 1289
-312891.616e-93.358e-66.008e-6
13004572015793149549827511857.48477503260375
34 × 53 × 151 × 163 × 311
2015-01-101633110.02197.862e-61.525e-5
13004573610817467228559137775512478.257138828791233718575
52 × 11 × 23 × 21949216005331
2021-03-19252194921600533161,08354,958102,646

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
130045720274312182127577493836616892890.712
1300457363166431930874331243528927777888934111.484
13004577278661114714188304140005429591845602280141135.741
130045773206840563271021348479938886852895227623258694363
9
51168.968
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2015-01-11T00:41:00alpertronManual testing50000015000000121857.4840.0230.0820.0464.864%


Trial Factoring results:
Exponent "1300457" not found


ECM factoring results:
Total ECM effort:20.787 GHz-days
Estimated T-Level:25.391
DigitsB1CurvesCompleteFacMiss
2011000301 / 1003.0104.855%
2550000301 / 2801.07534.064%
3025000050 / 6400.07892.479%

ECM Summary

B1B2factorcurvesGHz-days
5000050000002519.68
25000035000000408.882
25000035000000102.220


Lucas-Lehmer results:
Exponent "1300457" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-30T00:39:07Oliver KruseGTX-2
10057734439
201579314954982751
6BE395D82C50B6__no
2017-10-22T19:04:10kkmrkkblmbrbkc4.xlarge
10057734439
201579314954982751
6BE395D82C50B6__no
2021-03-21T15:28:12Cork3tits
10057734439
201579314954982751
361081746722855913777551
DD07517AFB475A85no


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (stage 2)
B1 = 500000 (stage 1)
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TF factor-bounds graph:
267
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Last modified: 2021-03-21T15:28:12+00:00