factordbrpc · fdb
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Distinct-prime home prime, descending · Base 10 of 3398 length 24 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
4 Fully factored 5 10332 22×32×7×41
5 Fully factored 5 41732 22×10433
6 Fully factored 6 104332 22×26083
7 Fully factored 6 260832 25×3×11×13×19
8 Fully factored 8 19131132 22×3×1594261
9 Fully factored 9 159426132 22×3×13285511
10 Fully factored 10 1328551132<10> 22×29×167×68581
11 Fully factored 11 68581167292<11> 22×11×83×379×49549
12 Fully factored 13 4954937983…12<13> 23×13×101×1117×422309
13 Fully factored 16 4223091117…32<16> 22×157×6724667383…19<13>
14 Fully factored 17 6724667383…72<17> 22×11×22566421×67726003
15 Fully factored 19 6772600322…12<19> 23×32×7×113×1009594218…63<14>
16 Fully factored 19 1009594218…32<19> 22×13×17×37×509×60642218881<11>
17 Fully factored 21 6064221888…32<21> 22×3×11×4594107491…51<19>
18 Fully factored 23 4594107491…32<23> 22×3×7×23×37×67×107×1190473×75303329
19 Fully factored 27 7530332911…32<27> 22×3×72×10697681×57250451×2091068669<10>
20 Fully factored 29 2091068669…32<29> 22×32×127×4573641009…31<25>
21 Fully factored 30 4573641009…32<30> 22×7×1913×8538647243…13<25>
22 Fully factored 31 8538647243…72<31> 22×83×479×5369272859…99<26>
23 Composite 32 5369272859…32<32> 23×293×467×4905022308…09<26>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (26 digits) of term #23:
49050223084277249330448509
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 '3398' --type 133 --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":"3398"},"type":133,"part":"last20","fr":0}}'