is 2 18819701 - 1
has 5665295 decimal digits
takes 11.998 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2671.578962.6866%----1.578962.6866%0.0000%
PrimeNet2650.387761.5385%9000028000000.21974.8262%0.607363.3947%1.8562%
GPU722696.343763.7681%13000036000000.29493.4753%6.638665.0273%1.2592%
Difference-2-4.7648-1.0815%-130000-3600000-0.2949-3.4753%-5.0598-2.3407%-2.3407%

Known prime factors (2 factors, 130.1 bits, 0.00069148% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1881970144753783609571584091961.957118901420404
22 × 13 × 41 × 55769897
2002-03-3141557698970.01932.80875.2459
188197013337338684409753188732168.1778866609210236
22 × 3 × 19 × 149 × 227 × 1149769
2021-08-1222711497695.50210.05810.1082

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
18819701149358533313926405792470303490074835305740130.134
P-1 results:
Exponent "18819701" not found


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-08-12T05:45:28ATHec2-P_11000001000000027P-12168.1770.600


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2002-03-31T00:00:00ANONYMOUSv4_computers??61.957190.00324.800.006
2001-10-20T00:00:00Net_Forcev4_computers?258--0.002--
2001-12-08T00:00:00Net_Forcev4_computers?259--0.002--


ECM factoring results:
Exponent "18819701" not found


Lucas-Lehmer results:
Exponent "18819701" not found


PRP results:
Exponent "18819701" not found


P-1 factor-bounds graph:
B1 = 100000, B2 = 10000000 (P-1 stage 2)
B1 = 100000 (P-1 stage 1)
100
101
102
103
104
105
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
267
259
258
2
250
260
270
280
290
2100
Last modified: 2021-08-12T05:45:28+00:00