is 2 9999971879 - 1
has 3010291492 decimal digits
takes 2,905,663.125 GHz-days to do one PRP test
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2660.001548.4848%----0.001548.4848%0.0000%
PrimeNet292100,297.697563.0435%30000000320000000085,406.39645.5162%185,704.093965.0821%2.0386%
GPU722961,604,763.160864.5833%45000000320000000091,381.90944.2828%1,696,145.070266.1002%1.5168%
Difference-30-1,604,763.1593-16.0985%-45000000-3200000000-91,381.9094-4.2828%-1,696,145.0687-17.6153%-17.6153%

Known prime factors (6 factors, 282.6 bits, 0.00000283% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
9999971879199999437591134.2191
1
2018-06-26112.294e-130.00040.0009
99999718794199988189191238.61221
3 × 7
2019-06-20373.845e-120.00140.0026
9999971879367998965147211445.0651840
24 × 5 × 23
2019-06-2016236.473e-100.00690.0137
999997187912429765046159431650.14362149
19 × 3271
2019-06-201932712.961e-80.08270.1404
999997187917822349881628971650.66389112
23 × 3 × 47 × 79
2019-06-2047791.757e-80.02050.0403
9999971879171200765764972748892063.892856006236
22 × 32 × 17 × 163 × 8581
2021-05-2416385810.00020.26190.3679

57 Composite Factors:
exponentprime factorscomposite factordigitsbits*
999997187983999527572264251765212272.831
99999718797359958606314401155762392479.284
9999971879154559130725242444968065992683.676
9999971879248594601860772638947497372684.362
9999971879356445995285799707305098232684.882
99999718795220486638827630116974256172788.754
99999718797485365900645346855774483432789.274
9999971879457414067400963317743507969032995.207
9999971879655860631293096160009065067372995.727
99999718793424005686797187589967629677513098.112
9999971879221527621599095426088610726687131100.805
9999971879719041194193169240740207682499131102.504
999997187963001704633919869572986537214096933108.957
99999718792127985294181186263381366904295532735114.035
99999718793051199947466151090791129291959343335114.555
999997187930911739219447777810009723510006564136117.896
99999718791044094391711635480347397146508587430338122.974
99999718791497068970284433189205371529872774133738123.493
999997187991482556225947016572922061679683137837739129.427
9999971879131171757396041586451601662775715460438340129.947
99999718791921133680653404534551170631724644300785741133.819
99999718792754606905185701189225015686288211655730341134.339
99999718794430539973046942167046355884186120390808941135.025
999997187914380783444267582196772885179961728568116942136.723
999997187993041339429555233075991565046136313673244942139.417
99999718791260030549399527075172346089946098541976247144143.176
99999718798152193549998984291244558338325506392710799144145.870
999997187926460641536130034485940870497408338637219251145147.569
999997187942559586203602795223530699254454589514945419345148.254
999997187961023827346786776372019088655284356914573464745148.774
9999971879893751310233098993810520959075919041727943151346152.647
99999718791281500374221498304863077839945148909366855892747153.167
999997187978309638610715778255297285089838110970500086876748159.100
9999971879112283842312476511821124871269758329954901942719349159.620
99999718793792569845585825390409487982846780394647136990231950164.698
999997187938422565566588757062898984942105387189993879511446
3
51168.038
999997187955091983181867069235479730521657020579294270072197
7
51168.558
999997187918608215558531338039039678740811165137124807030335
791
53173.636
999997187916304341251246224033201564288130462208941094955194
78169
55180.089
999997187952921134254966005622954788614766912800201172615209
88849
55181.788
999997187934239116625986631759723488146825058971111198127366
881729
56184.482
999997187917874975939194541056489908284009121445796037204749
2277367
57186.866
999997187925629935411567419505975392994542181832217306152657
7386593
57187.386
999997187915661883680019304598398608456221514818248026456386
139675153
59193.319
999997187922456705312939547404309960935112815166198038607458
395238487
59193.839
999997187932889955726474346884422762192959235416524093339000
8915802873
60197.711
999997187947159081154927372702801387727314414423620714476564
5911464367
60198.231
999997187975851183613795822215783977636921964607166564455006
5323677121
60198.917
999997187915928748558138608696197470225671714970935622456621
944399173161
62203.309
999997187913956617784240977693101018595897336647673124945145
59346315537999
64209.762
999997187968478040687757447308031296432780431383408236828244
3753339204679311
66218.701
999997187965779726476548692504471211703861621411012280604848
43528566026330619607
70231.931
999997187994317897082466421978565957629344111658243269067868
89464595633332535553
70232.451
999997187931857407531402451565045772167151133741579076874209
6305108688266102252199
72237.529
999997187927913157075067875036519393422355988109135209711869
182932978563847827398241
74243.982
999997187958617629854851214019842530648327371310004473065390
6591702258653878064603081
75248.374
999997187911723493003829036137097229230027812336203996153462
435127684549150832339305388658121479
86282.593
P-1 results:
No P-1 results for M9999971879


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2019-06-20T10:32:0123423534.219115.44923e-166,005,0001.12617e-15
2019-06-20T10:32:0123823938.612121.83094e-13651,9634.32765e-13
2019-06-20T10:32:0124524645.065141.78560e-10651,9634.22049e-10
2019-06-20T10:32:0125025150.143161.46062e-8651,9633.45236e-8
2019-06-20T10:32:0125025150.663162.57127e-9651,9636.07750e-9
2021-05-24T00:22:49mersenneNoobfactoring26326463.892201.68284e-56,005,0003.47785e-5


ECM factoring results:
No ECM results for M9999971879


Lucas-Lehmer results:
No L-L results for M9999971879


PRP results:
No PRP results for M9999971879


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
TF factor-bounds graph:
266
264
251
246
239
235
230
240
250
260
270
280
290
2100
Last modified: 2021-05-24T00:22:49+00:00