factordbrpc · fdb
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Home prime · Base 25 of 361 length 20 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 3 361 192
1 Fully factored 3 494 2×13×19
2 Fully factored 4 1594 2×797
3 Fully factored 5 32047 73×439
4 Fully factored 5 46064 24×2879
5 Fully factored 9 508627879 17×29919287
6 Fully factored 10 4180309912<10> 23×522538739
7 Fully factored 13 7947299882…89<13> 11×557×1297094807<10>
8 Fully factored 14 4536262521…07<14> 3×7×59×56477×648269
9 Fully factored 18 1957288535…19<18> 7×523×5346322139…79<14>
10 Fully factored 18 4671631433…29<18> 3×1693×1767911×52027141
11 Fully factored 21 1157955671…16<21> 22×7×17×349×6970429746…59<15>
12 Fully factored 23 4871570895…84<23> 23×17×823×51769×323473×25990969
13 Fully factored 29 1895651959…69<29> 3×6318839864…23<28>
14 Fully factored 29 3360368091…98<29> 2×37×56017177031<11>×8106509828…17<16>
15 Fully factored 32 1170853569…67<32> 1213×1207363×42394121129<11>×188581152017<12>
16 Fully factored 34 6895809485…42<34> 2×3×7036423×1633360559…09<27>
17 Fully factored 36 1908536609…09<36> 23×719×4447×2595234698…31<28>
18 Fully factored 38 5117247562…56<38> 24×32×7×2305825929…29<17>×2201655563…33<19>
19 Composite 46 1129378718…83<46> 32×7×5297×19927×1698349847…39<36>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (36 digits) of term #19:
169834984711382971132636315987168939
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 '361' --type 42 --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":"361"},"type":42,"part":"last20","fr":0}}'