is 2 25002701 - 1
has 7526563 decimal digits
takes 21.426 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L3879FC79C38B4C6Adouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27119.121164.7887%40000070000000.94383.9533%20.064966.1808%1.3920%
PrimeNet2660.590762.1212%11000040000000.40004.9776%0.990764.0067%1.8855%
GPU722709.557064.2857%18000050000000.55003.6603%10.107065.5930%1.3073%
Difference+1+9.5641+0.5030%+220000+2000000+0.3939+0.2930%+9.9579+0.5878%+0.5878%

Known prime factors:
No known factors for M25002701

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-10-18T00:00:00ANONYMOUSv4_computers370000370000---0.460--1.620%
2012-05-17T21:04:00bcp19acer-Q82004000007000000---0.944--3.953%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-08-12T00:00:00Net_Forcev4_computers21256--0.000--
2001-08-24T00:00:00Mattv4_computers21258--0.002--
2001-12-01T00:00:00Mattv4_computers21259--0.003--
2001-12-01T00:00:00Mattv4_computers21260--0.006--
2004-03-16T00:00:00TeraTismv4_computers21267--1.188--
2015-12-18T11:19:17VictordeHollanderManual testing267268--1.196--
2016-12-26T09:36:34Smok_bmvManual testing268269--2.391--
2017-03-15T15:56:57ramgeisManual testing269270--4.782--
2021-05-28T18:40:23mikrManual testing270271--9.56--


ECM factoring results:
No ECM results for M25002701


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2005-05-12T00:00:00Gymnasium_Raublingv4_computers3879FC79C38B4C6A21.43
2010-10-29T10:10:00AZMangoTraceyDell3879FC79C38B4C6A21.43


PRP results:
No PRP results for M25002701


P-1 factor-bounds graph:
B1 = 400000, B2 = 7000000 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
B1 = 370000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-05-28T18:40:23+00:00