factordbrpc · fdb
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Home prime · Base 27 of 874 length 23 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
3 Fully factored 6 132172 22×173×191
4 Fully factored 8 29887004 22×7×541×1973
5 Fully factored 11 21806640209<11> 457×47716937
6 Fully factored 12 177098880410<12> 2×5×31×149×3834139
7 Fully factored 15 4502366643…08<15> 23×72×79×89×163356979
8 Fully factored 21 2272836548…97<21> 101×2556877×880110078161<12>
9 Fully factored 23 1107081561…69<23> 389×2347141×1212525376…81<14>
10 Fully factored 25 1149710898…17<25> 7×863×20887×310087×29384627273<11>
11 Fully factored 29 1105914186…31<29> 23539×4698220769…29<24>
12 Fully factored 29 5069627201…62<29> 2×25938461×9772413255…21<21>
13 Fully factored 31 2365752872…98<31> 2×1182876436…99<31>
14 Fully factored 32 6298918520…57<32> 97×9013×7204849032…37<26>
15 Fully factored 34 3011756843…69<34> 7×13×59×163×433×65677×1031252639<10>×117347170273<12>
16 Fully factored 39 1229193070…34<39> 2×6745357×3483619923…73<14>×2615498059…97<18>
17 Fully factored 41 2957325634…81<41> 7×41×79×591067×2206751583…91<31>
18 Fully factored 46 1662873737…99<46> 397×4188598835…67<43>
19 Fully factored 46 3469190135…20<46> 23×5×23×131×8837×3897161×6712483×26346371×4726196509…81<16>
20 Fully factored 52 7023540549…58<52> 2×19×9551×1935190183…41<47>
21 Fully factored 54 2484824192…11<54> 83×236377×1266520891…21<47>
22 Composite 55 7618307088…81<55> 7618307088…81<55>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (55 digits) of term #22:
7618307088275662196634947537051071559212052042316958381
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 '874' --type 44 --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":"874"},"type":44,"part":"last20","fr":0}}'