is 2 2621856541 - 1
has 789257464 decimal digits
takes 404,567.030 GHz-days to do one PRP test
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual28947,817.936464.0449%----47,817.936464.0449%
Target29095,635.872864.4444%14000000640000000080,978.62974.3030%176,614.502565.9744%
Difference-1-47,817.9364-0.3995%-14000000-6400000000-80,978.6297-4.3030%-128,796.5661-1.9295%

Known prime factors (10 factors, 516.4 bits, 0.00001970% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
26218565411048742616411236.61020
22 × 5		2012-08-20453.658e-120.00090.0018
26218565412045048101991237.57339
3 × 13		2012-08-203137.632e-120.00080.0014
26218565412307233756091237.74744
22 × 11		2012-08-204117.715e-120.00100.0018
26218565413303539241671238.26563
32 × 7		2014-10-23991.606e-110.00200.0041
26218565417550946838091239.458144
24 × 32		2014-10-23993.751e-110.00200.0041
2621856541788182723103943291756.12915031004
22 × 571 × 6581		2014-10-2357165814.045e-60.20100.2600
262185654153046561184660084311962.2021011622115
5 × 7 × 1021 × 28309		2014-10-231021283090.00030.56110.6444
2621856541145600579717918757212063.6592776669460
22 × 5 × 487 × 285079		2014-10-234872850790.00123.57826.4906
2621856541643405097170575208092065.80212270028644
22 × 32 × 29 × 2791 × 4211		2014-10-23279142110.00540.64181.2709
26218565415860059207745218311629192478.955111754001717999
23 × 73 × 66559858081		2014-11-02736655985808133.299811,3741,515,421

1,013 Composite Factors:
P-1 results:
No P-1 results for M2621856541


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2021-11-20slaursekunda-rtx206026426865.802200.021822,0590.747
2021-08-31Seth_Tr10802127236.610120.365822,0590.747
2021-08-31Seth_Tr10802127263.659200.365822,0590.747
2021-08-31Seth_Tr10802127237.573120.365822,0590.747
2021-08-31Seth_Tr10802127237.747120.365822,0590.747
2021-08-31Seth_Tr10802127238.265120.365822,059