factordbrpc · fdb
Sign in
Show
Open
Inverse home prime · Base 9 of 901 length 33 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
13 Fully factored 22 6380093552…80<22> 23×5×421×3788654128…97<18>
14 Fully factored 25 1812101524…01<25> 47×20021×1925745546…23<19>
15 Fully factored 25 9210781252…35<25> 5×7×13×47×4307122399…91<21>
16 Fully factored 27 2288981435…19<27> 7×3269973479…17<26>
17 Fully factored 27 2942976131…60<27> 22×5×13×643×391537×11167543×402598337
18 Fully factored 30 3964671278…06<30> 2×71×12479×3296709847<10>×6786694970…11<14>
19 Fully factored 32 1018646506…50<32> 2×52×3832×743×500209901×3736929032…57<13>
20 Fully factored 35 3312017077…71<35> 83×1979×24133×69837727×85476047×1399660939<10>
21 Fully factored 38 5933324840…00<38> 22×52×5209×54568751×1370513647<10>×1523057819…13<16>
22 Fully factored 41 8856541162…30<41> 2×5×47×401×4699178204…39<36>
23 Fully factored 43 2247602367…06<43> 2×13×1832020059…99<17>×4718629823…69<25>
24 Fully factored 45 5163077054…11<45> 271079×1904639257…09<40>
25 Fully factored 46 1012203391…48<46> 22×29×433×4345796958…21<15>×4637164165…21<26>
26 Fully factored 48 4109889904…40<48> 23×5×132×105563×5759327410…13<39>
27 Fully factored 53 1317549378…69<53> 13×23×5471×21727283×267113862781<12>×1387800847…07<28>
28 Fully factored 54 7263022887…18<54> 2×3631511443…59<54>
29 Fully factored 55 3268360299…33<55> 2512171×1301010281…23<49>
30 Fully factored 55 6222691844…58<55> 2×3196033×9735024394…13<48>
31 Fully factored 56 4190608790…72<56> 24×30583166657<11>×5072862483…37<17>×1688191060…63<28>
32 Composite 59 5217042896…57<59> 7×7452918423…51<58>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (58 digits) of term #32:
7452918423518639972840711865034620606307214540138389782851
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 '901' --type 19 --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":"901"},"type":19,"part":"last20","fr":0}}'