factordbrpc · fdb
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Inverse home prime · Base 3 of 255274 length 47 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
27 Fully factored 17 4371747441…95<17> 5×2693×3246748935…23<13>
28 Fully factored 18 1917172778…69<18> 7×2738818255…67<17>
29 Fully factored 18 2464936429…10<18> 2×5×23×1071711491…47<16>
30 Fully factored 18 7812776771…01<18> 47×1662292930…83<17>
31 Fully factored 19 1346457273…70<19> 2×5×19×5209×1360456369…97<13>
32 Fully factored 19 6507020640…84<19> 24×13×10733×2914725899…81<13>
33 Fully factored 21 1254693925…05<21> 5×2509387851…21<20>
34 Fully factored 21 2258449066…94<21> 2×29×19777×34231×5751780539<10>
35 Fully factored 22 4873418135…94<22> 2×38075641×6399653436…17<14>
36 Fully factored 22 8264522878…96<22> 22×29×131×5438617319…01<18>
37 Fully factored 23 9634347423…15<23> 5×72×31×4177×3036896911…21<16>
38 Fully factored 25 1176556086…76<25> 26×17×1249×5171×1674351992…63<15>
39 Fully factored 26 4728864571…82<26> 2×155069×1524761419…89<21>
40 Fully factored 26 8103207335…58<26> 2×816571753×4961724004…93<17>
41 Fully factored 27 1730046185…54<27> 2×227×3810674418…51<24>
42 Fully factored 27 2777981651…62<27> 2×521×20407×1306419004…73<20>
43 Fully factored 28 1687111631…73<28> 37×853×467256347×1144031164…19<15>
44 Fully factored 29 2355458715…70<29> 2×5×8089×107243×2715261781…71<19>
45 Fully factored 30 2556233754…00<30> 26×53×605128907×5280349619…41<17>
46 Composite 32 3261531482…37<32> 7×1381×3373881745…11<28>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (28 digits) of term #46:
3373881745013419904577244511
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 '255274' --type 13 --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":"255274"},"type":13,"part":"last20","fr":0}}'