is 2 102256103 - 1
has 30782155 decimal digits
takes 407.143 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276149.663464.4737%7370007370004.25491.5127%153.918365.0111%0.5374%
PrimeNet2729.352362.5000%450000220000009.37655.3790%18.728864.5171%2.0171%
GPU72276149.663464.4737%6500002200000010.46823.8509%160.131665.8418%1.3681%
Difference---+87000-21263000-6.2133-2.3382%-6.2133-0.8307%-0.8307%

Known prime factors (1 factor, 78.5 bits, 0.00007673% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1022561034172989263133510063450812478.4652040459757758180
22 × 32 × 5 × 11 × 23 × 71 × 113 × 1123 × 4973
2021-01-20112349731,026.30.00770.0132

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-01-20T01:04:13Jwb52zClay7370007370002478.4654.255814.38.5101.513%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-12T01:22:001997rj7Manual testing263264--0.019--
2010-08-18T02:37:00garonorth264265--0.037--
2012-04-21T14:33:00oodairaLinux01265266--0.073--
2013-09-07T01:27:00processinfoManual testing266267--0.146--
2013-09-08T21:22:00Cow_tippingManual testing267268--0.292--
2013-09-15T22:12:00ANONYMOUS268269--0.585--
2013-12-15T10:39:00ANONYMOUS269270--1.169--
2014-04-22T18:26:00Andreas_TruetschManual testing270271--2.339--
2014-12-14T21:29:00RichD0Manual testing271272--4.677--
2019-11-26T17:47:23adamsManual testing272273--9.354--
2020-03-29T16:51:28SRBaseManual testing273274--18.71--
2020-10-25T06:08:02Mark RoseManual testing274275--37.42--
2020-10-25T06:08:02Mark RoseManual testing275276--74.83--


ECM factoring results:
No ECM results for M102256103


Lucas-Lehmer results:
No L-L results for M102256103


PRP results:
No PRP results for M102256103


P-1 factor-bounds graph:
B1 = 737000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
267
266
265
264
250
260
270
280
290
2100
Last modified: 2021-01-20T01:06:52+00:00