factordbrpc · fdb
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Inverse home prime · Base 31 of 235 length 17 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
0 Fully factored 3 235 5×47
1 Fully factored 4 1462 2×17×43
2 Fully factored 5 41852 22×10463
3 Fully factored 8 10055007 32×17×65719
4 Fully factored 10 1957851162<10> 2×34×19×59×10781
5 Fully factored 16 9195071184…83<16> 72×17×1103850082…51<14>
6 Fully factored 18 3288479779…02<18> 2×3×43×641×6367×312307627
7 Fully factored 22 8257295661…23<22> 29×27337×73672073×141379387
8 Fully factored 24 1158785448…96<24> 23×3×439×1099834328…11<20>
9 Fully factored 28 9761070150…69<28> 983×2633×84499×125621×355286938249<12>
10 Fully factored 33 2689322931…55<33> 5×461×216381854677<12>×5392016175…43<18>
11 Fully factored 35 1370029184…36<35> 27×331×25247×1280802230…41<26>
12 Fully factored 44 1008840250…53<44> 3×19×37×2535553×1886570887…89<34>
13 Fully factored 47 4988022145…81<47> 137×3308923×1100325416…31<39>
14 Fully factored 49 3027282857…81<49> 11×7873×18257×101293×115589×1125313573<10>×1453185821…91<21>
15 Fully factored 53 9381632491…27<53> 47×193×349×2083×110899×488981×2623547538…69<33>
16 Composite 58 5916130335…31<58> 32×1442837917<10>×4555936653…27<48>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (48 digits) of term #16:
455593665332260840111786039801061537317869163427
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 '235' --type 81 --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":"235"},"type":81,"part":"last20","fr":0}}'