tables > factorial > f2+1

n!! + 1

Table

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(available: 0-999)

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

0: \[0!!+1\] 2
1: \[1!!+1\] 2
2: \[2!!+1\] 3
3: \[3!!+1\] 22
4: \[4!!+1\] 32
5: \[5!!+1\] 24
6: \[6!!+1\] 72
7: \[7!!+1\] 2 × 53
8: \[8!!+1\] 5 × 7 × 11
9: \[9!!+1\] 2 × 11 × 43
10: \[10!!+1\] 23 × 167
11: \[11!!+1\] 22 × 23 × 113
12: \[12!!+1\] 7 × 29 × 227
13: \[13!!+1\] 25 × 41 × 103
14: \[14!!+1\] 167 × 3863
15: \[15!!+1\] 2 × 83 × 12211
16: \[16!!+1\] 19 × 543259
17: \[17!!+1\] 2 × 19 × 43 × 21089
18: \[18!!+1\] 292 × 173 × 1277
19: \[19!!+1\] 22 × 307 × 533167
20: \[20!!+1\] 11 × 232 × 151 × 4229
21: \[21!!+1\] 24 × 23 × 109 × 127 × 2699
22: \[22!!+1\] 109 × 9421 × 79609
23: \[23!!+1\] 2 × 197 × 14867 × 53987
24: \[24!!+1\] 13 × 92413 × 1633129
25: \[25!!+1\] 2 × 101 × 37039 × 1056667
26: \[26!!+1\] 163 × 193 × 1621531339
27: \[27!!+1\] 22 × 137 × 396479 × 982453
28: \[28!!+1\] 31 × 37 × 1245273864883<13>
29: \[29!!+1\] 26 × 31 × 73 × 1823 × 23445491
30: \[30!!+1\] 67 × 409 × 1151 × 1358551517
31: \[31!!+1\] 2 × 2861 × 33537012226933<14>
32: \[32!!+1\] 17 × 3203 × 131381 × 191673071
33: \[33!!+1\] 2 × 73 × 1277 × 309259 × 109829767
34: \[34!!+1\] 23 × 118751 × 17069206401337<14>
35: \[35!!+1\] 22 × 67 × 827026475659327507<18>
36: \[36!!+1\] 19 × 197 × 839 × 95549 × 5593363037<10>
37: \[37!!+1\] 24 × 593 × 5479 × 157753845447563<15>
38: \[38!!+1\] 29 × 313 × 353 × 19904327003732221<17>
39: \[39!!+1\] 2 × 47 × 53 × 61 × 1889 × 160649 × 3467983283
40: \[40!!+1\] 43 × 28807 × 45127 × 49477 × 922397719
41: \[41!!+1\] 2 × 43 × 389 × 71437 × 5486976928652587<16>
42: \[42!!+1\] 263273 × 406974781148407909337<21>
43: \[43!!+1\] 22 × 2023373108623<13> × 69668568203953<14>
44: \[44!!+1\] 23 × 433 × 186740597779<12> × 2534965306541<13>
45: \[45!!+1\] 25 × 71 × 2377 × 12007 × 391303150609315597<18>
46: \[46!!+1\] 47 × 510361 × 1368847 × 6604715006985449<16>
47: \[47!!+1\] 2 × 596284096387217061769953820313<30>
48: \[48!!+1\] 47 × 359 × 5227 × 1087602641 × 108520180134491<15>
49: \[49!!+1\] 2 × 1217 × 177283 × 135422752240860915180283<24>
50: \[50!!+1\] 1227870767 × 6065487227<10> × 69883913593789<14>
51: \[51!!+1\] 22 × 83 × 3115993 × 127407421 × 22611022196047931<17>
52: \[52!!+1\] 43 × 71 × 51691 × 842144745163<12> × 203643443779949<15>
53: \[53!!+1\] 24 × 1103 × 1922563 × 4655317143547143244558799<25>
54: \[54!!+1\] 157 × 2465355733 × 3775838651255783026804321<25>
55: \[55!!+1\] 2 × 1423 × 111827 × 60694247 × 87205211 × 5157230023909<13>
56: \[56!!+1\] 29 × 19991 × 164447 × 112608861623<12> × 7623416724934939<16>
57: \[57!!+1\] 2 × 71 × 2202202450068287<16> × 1583497226505824309969<22>
58: \[58!!+1\] 59 × 521 × 154425479855101730015420594869637659<36>
59: \[59!!+1\] 22 × 7303901592868292321254515022812314824219<40>
60: \[60!!+1\] 31 × 43 × 59 × 139 × 11087 × 2349897590790971906321385524731<31>
61: \[61!!+1\] 27 × 751 × 11351 × 1633280245187450091493011727145467<34>
62: \[62!!+1\] 80287 × 290667112381<12> × 756676955492730681090692683<27>
63: \[63!!+1\] 2 × 167 × 32633 × 179935159619<12> × 432137418877<12> × 132478046108041<15>
64: \[64!!+1\] 67 × 6106300331<10> × 44026722967<11> × 62742567127231648299239<23>
65: \[65!!+1\] 2 × 67 × 47497 × 1146641530786726879144776515420708224787<40>
66: \[66!!+1\] 4099 × 26987 × 459435547 × 5409597588587<13> × 271302291965777593<18>
67: \[67!!+1\] 22 × 122240032592165850385980695868267946161553417969<48>
68: \[68!!+1\] 59 × 71 × 419 × 13781 × 38665541 × 54995393053<11> × 98611812009593738747<20>
69: \[69!!+1\] 24 × 71 × 104393 × 15993411672218375023<20> × 17788188099621615672169<23>
70: \[70!!+1\] 479 × 66491 × 11147670373737277839114707172354511542825709<44>
71: \[71!!+1\] 2 × 39601372553<11> × 767017553051<12> × 39430778427777458708061214871<29>
72: \[72!!+1\] 37 × 690896939629347629014331483828706966091078572972973<51>
73: \[73!!+1\] 2 × 212334292498709<15> × 411768966956708544326702891730443847157<39>
74: \[74!!+1\] 1951 × 8863 × 15877349 × 6890182146790995160707742034726521737773<40>
75: \[75!!+1\] 22 × 433 × 3187427 × 375418139 × 408191355602747<15> × 15502360097768920888373<23>
76: \[76!!+1\] 324491 × 603164941 × 9052237948152499<16> × 81145716187039751814108629<26>
77: \[77!!+1\] 25 × 113 × 139 × 2009150706567671402291379705747422534662695500419249<52>
78: \[78!!+1\] 79 × 201611 × 704066357210401342204622045684162304440071171726829<51>
79: \[79!!+1\] 2 × 159119 × 100216163989<12> × 2501456853242046579938008547679619479441643<43>
80: \[80!!+1\] 41 × 79 × 276970775304480439030665473663277358752131100493693115159<57>
81: \[81!!+1\] 2 × 101 × 277 × 1961537 × 113926027876291680503<21> × 516793744354438153942241838079<30>
82: \[82!!+1\] 83 × 5996458998887018333197<22> × 147803863437447791280754553262100342151<39>
83: \[83!!+1\] 22 × 293 × 40153 × 11397256662580538007722243825757105053971842760575642161<56>
84: \[84!!+1\] 43 × 83 × 6737 × 28573 × 17660115375015499<17> × 220793909582776351<18> × 2306685951130276321<19>
85: \[85!!+1\] 24 × 10331 × 275805244769903976213640853717905856211311406831626453999981<60>
86: \[86!!+1\] 577 × 921002207741080267147826962801237897492592166018971026856152513<63>
87: \[87!!+1\] 2 × 1983143412667643072871134067192741038761264468208362895806567382813<67>
88: \[88!!+1\] 103 × 19138874808297502940891996795093<32> × 23722777209059916792152716339057019<35>
89: \[89!!+1\] 2 × 1069 × 8329 × 431731 × 6269479 × 24504397091417<14> × 298871741125859254957141559442518761<36>
90: \[90!!+1\] 157 × 14595437 × 52847609 × 63779774733045841<17> × 544924816642535819232399127301592481<36>
91: \[91!!+1\] 22 × 401 × 43385263 × 11378184897113339<17> × 122555945935756414903<21> × 331025572021519393301089<24>
92: \[92!!+1\] 47 × 613597 × 1670303 × 4049497 × 30781039 × 435724953030427<15> × 148004990094359597429410649593<30>
93: \[93!!+1\] 26 × 168343480531461967<18> × 277282326235154217789460830513858307774062496736803327<54>
94: \[94!!+1\] 331 × 109963702237447772957406028729191669412670180593617050308523357583081571<72>
95: \[95!!+1\] 2 × 3158524711 × 44927038894516965018249808572754292901371666361818929966848321383<65>
96: \[96!!+1\] 30849685948348240073<20> × 113265548574708519123187685691561767194657638569582070137<57>
97: \[97!!+1\] 2 × 311 × 409 × 5531 × 3660824059 × 687836876833<12> × 11748767868799981<17> × 661332426119068497292832325011<30>
98: \[98!!+1\] 157 × 20482843013<11> × 17072892124040111<17> × 181236820456367369<18> × 34413689513422252227352215866279<32>
99: \[99!!+1\] 22 × 199 × 443 × 81558423403231<14> × 3071255858737613<16> × 30855130334212619240356031714794564584257839<44>

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