is 2 24721777 - 1
has 7441997 decimal digits
takes 20.052 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
Actual2671.201962.6866%----1.201962.6866%0.0000%
PrimeNet2660.597462.1212%11000040000000.37864.9701%0.976064.0038%1.8826%
GPU722709.665664.2857%17000050000000.50943.6220%10.175065.5793%1.2936%
Difference-3-8.4637-1.5991%-170000-5000000-0.5094-3.6220%-8.9731-2.8927%-2.8927%

Known prime factors (3 factors, 172.8 bits, 0.00069893% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
247217771685789345647431547.2603409523
13 × 262271
-132622711.511e-60.01680.0314
247217774872934328149999991858.7589855550287
33 × 11 × 19 × 31 × 53 × 1063
2015-09-305310630.00310.00010.0001
247217771258193358802152424872166.7702544706553259
3 × 13 × 65248885981
2020-09-0813652488859810.75174,181.07,809.0

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
247217778214740772434887416966261043525732106.018
247217772121048959033022647201036554583584135114.030
247217776131093609557358502675853213068975751338125.527
2472177710335732284158839065791827950763121717342156869164
159
53172.788
P-1 results:
No P-1 results for M24721777


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2015-09-30T11:16:26TJAOIManual testing258259*58.758180.00241.460.003
2022-06-24T05:04:22LordJuliusManual testing2126547.260151.51071e-641.463.12348e-6
2022-06-24T05:04:22LordJuliusManual testing2126558.758180.00341.460.006
2022-06-24T05:04:22LordJuliusManual testing265266--0.302--
2020-09-08T11:17:54TJAOIManual testing266267*66.770210.15440.860.314


ECM factoring results:
No ECM results for M24721777


Lucas-Lehmer results:
No L-L results for M24721777


PRP results:
No PRP results for M24721777


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
267
266
265
259
240
250
260
270
280
290
2100
Last modified: 2022-06-24T05:04:22+00:00