factordbrpc · fdb
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Terminates
Home prime · Base 27 of 20 length 21 The sequence reaches a prime. ↓ .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
1 Fully factored 4 1517 37×41
2 Fully factored 5 27014 2×13×1039
3 Fully factored 7 1319800 23×52×6599
4 Fully factored 11 21727007417<11> 31×59×11879173
5 Fully factored 12 325129413979<12> 293×1109656703<10>
6 Fully factored 13 3065993145…82<13> 2×11×29×47×271×377297
7 Fully factored 17 1339113239…25<17> 52×919769×582369373
8 Fully factored 20 2102287005…20<20> 22×5×911×16771771×68796241
9 Fully factored 25 4481829118…22<25> 2×7151×217517×1440672662…83<16>
10 Fully factored 27 1374269733…05<27> 5×1429×234527×8201190510…87<17>
11 Fully factored 28 7964235943…38<28> 2×73×36721×1485514045…43<22>
12 Fully factored 31 2403844165…99<31> 232633×42097894277<11>×2454565443…39<15>
13 Fully factored 33 3652440237…89<33> 7213×5063690888…53<29>
14 Fully factored 34 8255771102…04<34> 23×23×29×317×2693×123103609×1472229180…91<17>
15 Fully factored 41 2487874444…70<41> 2×5×7×11×13×53×2657×675539×5184727×5039072852…49<19>
16 Fully factored 48 3771482596…15<48> 5×7×569×366001×5174275221…01<38>
17 Fully factored 50 2452878598…05<50> 5×97×1322048071<10>×3747315703<10>×4974597240…31<13>×2052148861…51<16>
18 Fully factored 53 1735747037…58<53> 2×37×20393×318127×1063771×1026481837<10>×5479689335…41<13>×6042514628…21<13>
19 Fully factored 58 3685321477…53<58> 109×3552260543…63<15>×9517964229…59<41>
20 Fully factored 60 1959889523…49<60> 1959889523…49<60>
↳ Terminates The sequence reaches a prime and terminates.
From the command linefdb · curl
fdb
fdb seq view '20' --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":"20"},"type":44,"part":"last20","fr":0}}'