is 2 59874989 - 1
has 18024168 decimal digits
takes 133.014 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
Actual2691.993962.3188 %----1.993962.3188 %
Target27331.947364.3836 %4000007000000013.50334.1519 %45.450665.8623 %
Difference-4-29.9534-2.0647 %-400000-70000000-13.5033-4.1519 %-43.4567-3.5435 %

Known prime factors (1 factor, 80.1 bits, 0.00013379% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5987498913019871867880804749878412580.10710872546354773280
25 × 34 × 5 × 31 × 97 × 4349 × 64151
2011-09-204349641516,904.60.02450.0285

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-09-20KC8200E2580.1072.5470.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-23ANONYMOUSv4_computers212532.00000e-5
2000-03-08ANONYMOUSv4_computers212544.01000e-5
2000-06-23ANONYMOUSv4_computers212560.000
2022-06-27LordJuliusManual testing21263
2008-07-02monstmersenne2632640.031
2009-08-20Per Jessenlouiswu52642650.062
2009-10-23Sturle Sundegiasha.ifi2652660.125
2009-10-26eon_blue_apocalypseBarolo2662670.250
2009-10-26ANONYMOUS_2672680.499
2009-10-28S36049Wolle32682690.998


ECM factoring results:
No ECM results for M59874989


Lucas-Lehmer results:
No L-L results for M59874989


PRP results:
No PRP results for M59874989


CERT results:
No CERT results for M59874989


P-1 factor-bounds graph:
102
103
104
102
103
104
105
TF factor-bounds graph:
269
268
267
266
265
264
263
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
290
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00