tables > repunit > 20

Base 20 Repunits

Table

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(available: 0-999)

Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>

0: \[{20^{0}-1\over19}\] 0
1: \[{20^{1}-1\over19}\] 1
2: \[{20^{2}-1\over19}\] 3 × 7
3: \[{20^{3}-1\over19}\] 421
4: \[{20^{4}-1\over19}\] 3 × 7 × 401
5: \[{20^{5}-1\over19}\] 11 × 61 × 251
6: \[{20^{6}-1\over19}\] 32 × 7 × 127 × 421
7: \[{20^{7}-1\over19}\] 29 × 71 × 32719
8: \[{20^{8}-1\over19}\] 3 × 7 × 401 × 160001
9: \[{20^{9}-1\over19}\] 421 × 64008001
10: \[{20^{10}-1\over19}\] 3 × 7 × 11 × 61 × 251 × 152381
11: \[{20^{11}-1\over19}\] 10778947368421<14>
12: \[{20^{12}-1\over19}\] 32 × 7 × 13 × 127 × 401 × 421 × 12277
13: \[{20^{13}-1\over19}\] 3121 × 142559 × 9690539
14: \[{20^{14}-1\over19}\] 3 × 72 × 29 × 71 × 827 × 10529 × 32719
15: \[{20^{15}-1\over19}\] 11 × 31 × 61 × 251 × 421 × 3001 × 261451
16: \[{20^{16}-1\over19}\] 3 × 7 × 17 × 401 × 160001 × 1505882353
17: \[{20^{17}-1\over19}\] 689852631578947368421<21>
18: \[{20^{18}-1\over19}\] 33 × 7 × 127 × 307 × 421 × 69481 × 64008001
19: \[{20^{19}-1\over19}\] 19 × 75368484119<11> × 192696104561<12>
20: \[{20^{20}-1\over19}\] 3 × 7 × 11 × 41 × 61 × 251 × 401 × 2801 × 152381 × 222361
21: \[{20^{21}-1\over19}\] 29 × 71 × 421 × 32719 × 460951 × 8442733531<10>
22: \[{20^{22}-1\over19}\] 3 × 7 × 23 × 424016563147<12> × 10778947368421<14>
23: \[{20^{23}-1\over19}\] 691 × 1381 × 46266279097921483078651<23>
24: \[{20^{24}-1\over19}\] 32 × 7 × 13 × 127 × 401 × 421 × 12277 × 31177 × 160001 × 821113
25: \[{20^{25}-1\over19}\] 11 × 61 × 151 × 251 × 1451 × 1369801 × 7466201 × 46794901
26: \[{20^{26}-1\over19}\] 3 × 7 × 2081 × 2549 × 3121 × 142559 × 9690539 × 735408649
27: \[{20^{27}-1\over19}\] 421 × 64008001 × 879338701 × 298114935351301<15>
28: \[{20^{28}-1\over19}\] 3 × 72 × 29 × 71 × 197 × 401 × 827 × 10529 × 14561 × 32719 × 1424354653
29: \[{20^{29}-1\over19}\] 59 × 929 × 10789 × 143609 × 466307299 × 71353204641689<14>
30: \[{20^{30}-1\over19}\] 32 × 7 × 11 × 31 × 61 × 127 × 251 × 421 × 3001 × 152381 × 261451 × 26876632021<11>
31: \[{20^{31}-1\over19}\] 311 × 11161 × 1646101 × 340037881769<12> × 581740080393079<15>
32: \[{20^{32}-1\over19}\] 3 × 7 × 17 × 97 × 401 × 160001 × 1505882353 × 6756288659793814433<19>
33: \[{20^{33}-1\over19}\] 421 × 661 × 859 × 10778947368421<14> × 175462044485240500219<21>
34: \[{20^{34}-1\over19}\] 3 × 7 × 2567783 × 2640509 × 92054423 × 689852631578947368421<21>
35: \[{20^{35}-1\over19}\] 11 × 29 × 61 × 71 × 251 × 491 × 701 × 911 × 23311 × 32719 × 164011 × 13295107990361<14>
36: \[{20^{36}-1\over19}\] 33 × 7 × 13 × 37 × 127 × 307 × 401 × 421 × 12277 × 24877 × 69481 × 64008001 × 4450002049<10>
37: \[{20^{37}-1\over19}\] 65269 × 2889957151 × 383493384240205993228059557962159<33>
38: \[{20^{38}-1\over19}\] 3 × 7 × 19 × 75368484119<11> × 109850818001<12> × 192696104561<12> × 2272727294381<13>
39: \[{20^{39}-1\over19}\] 79 × 421 × 1171 × 3121 × 142559 × 9690539 × 172311318287603732461390609<27>
40: \[{20^{40}-1\over19}\] 3 × 7 × 11 × 41 × 61 × 251 × 401 × 2801 × 148721 × 152381 × 160001 × 222361 × 4406613081041681<16>
41: \[{20^{41}-1\over19}\] 739 × 788985829969499330639<21> × 19850094536448035972954342201<29>
42: \[{20^{42}-1\over19}\] 32 × 72 × 29 × 43 × 71 × 127 × 421 × 827 × 10529 × 32719 × 460951 × 2750161 × 36363727 × 8442733531<10>
43: \[{20^{43}-1\over19}\] 369122321 × 12541974245083294274833711773684280721275134101<47>
44: \[{20^{44}-1\over19}\] 3 × 7 × 23 × 89 × 401 × 170770770413<12> × 424016563147<12> × 6881957521693<13> × 10778947368421<14>
45: \[{20^{45}-1\over19}\] 11 × 31 × 61 × 251 × 421 × 3001 × 53101 × 261451 × 64008001 × 79083953101<11> × 3994611390415801<16>
46: \[{20^{46}-1\over19}\] 3 × 7 × 47 × 461 × 691 × 1381 × 563041 × 3274400525856244223<19> × 46266279097921483078651<23>
47: \[{20^{47}-1\over19}\] 1129 × 4889 × 790551835729<12> × 1930941642781<13> × 87910897915022054334374219609<29>
48: \[{20^{48}-1\over19}\] 32 × 7 × 13 × 17 × 127 × 401 × 421 × 12277 × 31177 × 160001 × 821113 × 675796129 × 1505882353 × 969759919969<12>
49: \[{20^{49}-1\over19}\] 29 × 71 × 32719 × 269737651 × 2488859795549<13> × 6551154092925933298930251891324599<34>
50: \[{20^{50}-1\over19}\] 3 × 7 × 11 × 61 × 101 × 151 × 251 × 1451 × 152381 × 1369801 × 7466201 × 46794901 × 1038193734970398415809901<25>
51: \[{20^{51}-1\over19}\] 421 × 3061 × 60589 × 689852631578947368421<21> × 2200293635138152581356053802893789<34>
52: \[{20^{52}-1\over19}\] 3 × 7 × 53 × 401 × 2081 × 2549 × 3121 × 142559 × 502321 × 9690539 × 735408649 × 628605693732325702045277<24>
53: \[{20^{53}-1\over19}\] 593071 × 24540050076369381718561<23> × 3257272076316750353139146661697870498891<40>
54: \[{20^{54}-1\over19}\] 34 × 7 × 109 × 127 × 307 × 421 × 4483 × 69481 × 64008001 × 99672121 × 879338701 × 1794112741 × 298114935351301<15>
55: \[{20^{55}-1\over19}\] 112 × 61 × 251 × 2209901 × 10778947368421<14> × 2571413672161047121<19> × 167103718909962607171187251<27>
56: \[{20^{56}-1\over19}\] 3 × 72 × 29 × 71 × 197 × 401 × 617 × 827 × 1009 × 10529 × 14561 × 28393 × 32719 × 160001 × 1424354653 × 5417928377<10> × 175184754697<12>
57: \[{20^{57}-1\over19}\] 19 × 229 × 421 × 75368484119<11> × 192696104561<12> × 1374892397251<13> × 207373637974370334920244263016739<33>
58: \[{20^{58}-1\over19}\] 3 × 7 × 59 × 929 × 1741 × 10789 × 143609 × 466307299 × 71353204641689<14> × 10940140435272203<17> × 134223608855082547<18>
59: \[{20^{59}-1\over19}\] 709 × 32031477011<11> × 50552666868943321<17> × 4443043113983919668779<22> × 594796417554507257525081<24>
60: \[{20^{60}-1\over19}\] 32 × 7 × 11 × 13 × 31 × 41 × 61 × 127 × 251 × 401 × 421 × 2801 × 3001 × 12277 × 71161 × 152381 × 222361 × 261451 × 55191001 × 167283841 × 26876632021<11>
61: \[{20^{61}-1\over19}\] 1831 × 1575631 × 74324733207911<14> × 5659784747821331230431654824725808002385097133154909051<55>
62: \[{20^{62}-1\over19}\] 3 × 7 × 311 × 11161 × 40487 × 75269 × 1646101 × 340037881769<12> × 581740080393079<15> × 335566676799518320433573040127<30>
63: \[{20^{63}-1\over19}\] 29 × 71 × 421 × 6679 × 32719 × 460951 × 64008001 × 8442733531<10> × 10287600958458182504983419994609358363826919<44>
64: \[{20^{64}-1\over19}\] 3 × 7 × 17 × 97 × 193 × 401 × 577 × 641 × 160001 × 1505882353 × 6756288659793814433<19> × 6016843417749425380073724334377601<34>
65: \[{20^{65}-1\over19}\] 11 × 61 × 131 × 251 × 521 × 3121 × 3511 × 4421 × 90481 × 142559 × 9690539 × 4470064171<10> × 144142570154831<15> × 4329520082233745656921<22>
66: \[{20^{66}-1\over19}\] 32 × 7 × 23 × 67 × 127 × 421 × 661 × 859 × 38149 × 3049927 × 424016563147<12> × 10778947368421<14> × 14121717629581<14> × 175462044485240500219<21>
67: \[{20^{67}-1\over19}\] 906779 × 607366391 × 141027529625834791277325880782894530434550121999834925322075700531980089<72>
68: \[{20^{68}-1\over19}\] 3 × 7 × 401 × 2567783 × 2640509 × 92054423 × 629433157137881<15> × 689852631578947368421<21> × 680653156857066936553996121<27>
69: \[{20^{69}-1\over19}\] 139 × 421 × 691 × 1381 × 119553964489<12> × 113317059163579<15> × 46266279097921483078651<23> × 887612944642122132741202450909<30>
70: \[{20^{70}-1\over19}\] 3 × 72 × 11 × 29 × 61 × 71 × 251 × 491 × 701 × 827 × 911 × 10529 × 17921 × 23311 × 32719 × 152381 × 164011 × 7003781 × 31585261 × 4443547135861<13> × 13295107990361<14>
71: \[{20^{71}-1\over19}\] 201161092255316201234202042361<30> × 61777752739108975259079961779208763786873373427879250247440461<62>
72: \[{20^{72}-1\over19}\] 33 × 7 × 13 × 37 × 73 × 127 × 307 × 401 × 421 × 12277 × 24877 × 31177 × 69481 × 160001 × 821113 × 4468393 × 64008001 × 4450002049<10> × 51433451961886233152209<23>
73: \[{20^{73}-1\over19}\] 92419 × 6412324721641<13> × 8388017164299528473137529640945135276336333707655875659563939090886233451999<76>
74: \[{20^{74}-1\over19}\] 3 × 7 × 149 × 65269 × 368447 × 2889957151 × 9609038940231949<16> × 124065005275823894023123<24> × 383493384240205993228059557962159<33>
75: \[{20^{75}-1\over19}\] 11 × 31 × 61 × 151 × 251 × 421 × 1451 × 3001 × 11251 × 261451 × 1369801 × 7466201 × 46794901 × 9308203137060768572251<22> × 104988737576990732806404001<27>
76: \[{20^{76}-1\over19}\] 3 × 7 × 19 × 401 × 362478049 × 2622927733 × 75368484119<11> × 109850818001<12> × 192696104561<12> × 2272727294381<13> × 72098698642633148592794795053<29>
77: \[{20^{77}-1\over19}\] 29 × 71 × 32719 × 10778947368421<14> × 11591111347512862858060061<26> × 94492701984716091424823399007224633473246602866536721<53>
78: \[{20^{78}-1\over19}\] 32 × 7 × 79 × 127 × 421 × 1171 × 2081 × 2549 × 3121 × 142559 × 1340743 × 9690539 × 571945141 × 735408649 × 22969682841393367<17> × 172311318287603732461390609<27>
79: \[{20^{79}-1\over19}\] 26861 × 7731160503875069<16> × 4178614725165165091<19> × 52283868973702536169<20> × 7012116809755762514267308698568975988864311<43>
80: \[{20^{80}-1\over19}\] 3 × 7 × 11 × 17 × 41 × 61 × 251 × 401 × 2801 × 76001 × 148721 × 152381 × 160001 × 222361 × 1505882353 × 32018865275041<14> × 4406613081041681<16> × 176495898629033039186561<24>
81: \[{20^{81}-1\over19}\] 421 × 64008001 × 150773239 × 879338701 × 298114935351301<15> × 7599707813206155097384225291<28> × 15721667458073376459082354447584949<35>
82: \[{20^{82}-1\over19}\] 3 × 7 × 83 × 739 × 1723 × 824754607 × 35641617587<11> × 788985829969499330639<21> × 2490949949323610858879377601<28> × 19850094536448035972954342201<29>
83: \[{20^{83}-1\over19}\] 27817851030769<14> × 2871487521092731391<19> × 414249085636225553185611071<27> × 1538310379327087356765985018066468033557956350069<49>
84: \[{20^{84}-1\over19}\] 32 × 72 × 13 × 29 × 43 × 71 × 127 × 197 × 401 × 421 × 827 × 10529 × 12277 × 14561 × 32719 × 460951 × 1464961 × 2750161 × 8651161 × 36363727 × 1424354653 × 8442733531<10> × 1327100500372993081<19>
85: \[{20^{85}-1\over19}\] 11 × 61 × 251 × 2230061 × 455851601 × 18510970711<11> × 36372797968360681<17> × 126433576549825993751<21> × 689852631578947368421<21> × 2025046074983629951481<22>
86: \[{20^{86}-1\over19}\] 3 × 7 × 947 × 369122321 × 12541974245083294274833711773684280721275134101<47> × 4423036668279780761301352642429727962990898576959823<52>
87: \[{20^{87}-1\over19}\] 59 × 349 × 421 × 929 × 8179 × 10789 × 143609 × 564979 × 1177459 × 466307299 × 71353204641689<14> × 3605403851353821123741083595382953185544609831777342451<55>
88: \[{20^{88}-1\over19}\] 3 × 7 × 23 × 89 × 401 × 34057 × 160001 × 170770770413<12> × 424016563147<12> × 6881957521693<13> × 10778947368421<14> × 40094590244240929<17> × 8052021825835726849770514382617<31>
89: \[{20^{89}-1\over19}\] 179 × 335939325419<12> × 1547547240361<13> × 133724350874825473368329<24> × 261786786940548104294757775699593263493783883864102345432362297509<66>
90: \[{20^{90}-1\over19}\] 33 × 7 × 11 × 31 × 61 × 127 × 181 × 251 × 307 × 421 × 541 × 1621 × 3001 × 53101 × 54541 × 69481 × 152381 × 261451 × 64008001 × 26876632021<11> × 79083953101<11> × 3994611390415801<16> × 1938171611440030321<19>
91: \[{20^{91}-1\over19}\] 29 × 71 × 3121 × 32719 × 142559 × 9690539 × 104933918101562798067516186656513621<36> × 42753079684768103157355121804168940801106384712792554767161<59>
92: \[{20^{92}-1\over19}\] 3 × 7 × 47 × 401 × 461 × 691 × 1381 × 563041 × 6373576093<10> × 10725299405489<14> × 3274400525856244223<19> × 46266279097921483078651<23> × 25671002444875098778617582252548213<35>
93: \[{20^{93}-1\over19}\] 311 × 421 × 1489 × 11161 × 1646101 × 340037881769<12> × 581740080393079<15> × 735669815930822532937503688968508571966425959548932871142136554846387363229<75>
94: \[{20^{94}-1\over19}\] 3 × 7 × 1129 × 4889 × 6863 × 64109 × 790551835729<12> × 1930941642781<13> × 87910897915022054334374219609<29> × 1523201995370741149853911341808474202883334149728543<52>
95: \[{20^{95}-1\over19}\] 11 × 19 × 61 × 191 × 251 × 571 × 761 × 43891 × 189137401 × 2741840791 × 75368484119<11> × 192696104561<12> × 328942854011<12> × 1894266356321<13> × 64100641881631<14> × 59457999092908767491225521<26>
96: \[{20^{96}-1\over19}\] 32 × 7 × 13 × 17 × 97 × 127 × 401 × 421 × 10369 × 12277 × 31177 × 160001 × 821113 × 675796129 × 1505882353 × 969759919969<12> × 6756288659793814433<19> × 41421229588195582987688749156138489729<38>
97: \[{20^{97}-1\over19}\] 53678965801<11> × 3458308355911001<16> × 375921460689078723273556870099<30> × 49613947804350394354357836874439<32> × 24087249964807710583843491880243798561<38>
98: \[{20^{98}-1\over19}\] 3 × 73 × 29 × 71 × 827 × 10529 × 32719 × 269737651 × 2488859795549<13> × 6551154092925933298930251891324599<34> × 628292358238289452269193508271835428805485714102857143<54>
99: \[{20^{99}-1\over19}\] 199 × 421 × 661 × 859 × 64008001 × 10778947368421<14> × 175462044485240500219<21> × 12992593428389191667383293584162419<35> × 445857960156220211502282409711073343103021<42>

Index range: 0 – 99 next >>