is 2 61893683 - 1
has 18631856 decimal digits
takes 145.393 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
Actual2670.480161.1940%----0.480161.1940%0.0000%
PrimeNet2703.860762.8571%260000120000003.06435.1415%6.924964.7668%1.9097%
GPU7227461.813564.8649%400000130000003.70073.7210%65.514266.1722%1.3074%
Difference-7-61.3334-3.6708%-400000-13000000-3.7007-3.7210%-65.0342-4.9782%-4.9782%

Known prime factors (2 factors, 98.4 bits, 0.00015899% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
61893683649883671511135.919525
3 × 52 × 7
-25258.236e-118.515e-50.0002
6189368364671686948664143991962.48852244174053
17 × 3073186709
2016-08-171730731867090.0223570.311,065.2

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
618936834202907335694320278611250072493098.407
P-1 results:
No P-1 results for M61893683


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-08-17T15:27:37TJAOIManual testing262263*62.488190.012299.90.026


ECM factoring results:
No ECM results for M61893683


Lucas-Lehmer results:
No L-L results for M61893683


PRP results:
No PRP results for M61893683


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
263
230
240
250
260
270
280
290
2100
Last modified: 2016-08-17T15:27:37+00:00