factordbrpc · fdb
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Inverse home prime · Base 8 of 398 length 49 Not fully computed yet - the last known term is composite. ↓ .elf file
Show sequence-development graph
Term size (digits) across the sequence
How the sequence develops - decimal digits of each term vs iteration.
nStatus DigitsTermFactorization
29 Fully factored 61 5949362858…86<61> 2×3×67×1976347×78764757859<11>×9507126306…41<41>
30 Fully factored 64 3591690769…22<64> 2×197×1255955293<10>×4380273999…77<21>×1657018122…33<32>
31 Fully factored 66 3441491997…42<66> 2×32×421×22933069×144229769×1364763149<10>×1006045887…01<38>
32 Fully factored 70 3264805563…02<70> 2×672×2711×15137×47303×115519153×1621682056…93<46>
33 Fully factored 74 1606036119…62<74> 2×433×60793517×3050564046…21<63>
34 Fully factored 75 1677065320…46<75> 2×37×89×193×44509948421<11>×4923118631…53<27>×6021068261…29<31>
35 Fully factored 77 6874844627…38<77> 2×7×31×43×353×2251×3837088299…51<30>×1208238606…83<38>
36 Fully factored 79 4210097080…70<79> 2×5×112×292×122266864751<12>×3383778824…47<62>
37 Fully factored 83 1997430463…30<83> 2×5×389×3225015229<10>×1592173158…33<70>
38 Fully factored 84 4481569025…58<84> 2×11×15629×9753333341<10>×1336359023…51<69>
39 Fully factored 87 1540717056…70<87> 2×5×101×327771187×2445031050…39<16>×1798552601…07<22>×1058335149…07<39>
40 Fully factored 90 3167761517…22<90> 2×446839×582476805613<12>×2817584300…31<21>×6838502049…19<21>×3158310870…07<31>
41 Fully factored 93 6496268664…94<93> 2×7×59×8209637791…27<24>×9579877016…47<66>
42 Fully factored 94 9487450664…50<94> 2×53×13×29×7563174899…09<24>×1330957010…33<66>
43 Fully factored 97 5399003049…46<97> 2×59×193×1879×2296204950…07<25>×5494609432…43<65>
44 Fully factored 99 1426482164…98<99> 2×232×5563×2253473173…39<15>×1075521820…33<78>
45 Fully factored 101 3250565246…34<101> 2×3×17×73×167×47183459×1752486073…47<18>×7365796697…39<24>×4291956443…71<46>
46 Fully factored 106 1724227023…38<106> 2×1012×48611×1738549854…79<97>
47 Fully factored 108 9557778901…30<108> 2×5×821×9631×121792551499<12>×9924798793…37<89>
48 Composite 111 4686853717…10<111> 2×32×5×7×457×1627888478…91<106>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (106 digits) of term #48:
1627888478055175170092156611738232288974890957021053222860290591820751458057680343092108773982631895429591
Check for factors - let the server run a small P-1 / P+1 / ECM step on the composite:
level 0 done · takes up to a minute
From the command linefdb · curl
fdb
fdb seq view '398' --type 18 --part last20
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"sequence_view","params":{"start":{"expr":"398"},"type":18,"part":"last20","fr":0}}'