factordbrpc · fdb
Sign in
Show
Open
Home prime · Base 32 of 138 length 26 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
6 Fully factored 8 24261657 3×7×1155317
7 Fully factored 10 3457261813<10> 23×11783×12757
8 Fully factored 11 25082180053<11> 7×3733×959863
9 Fully factored 12 244433462647<12> 11×22221223877<11>
10 Fully factored 12 400178345925<12> 3×52×349×15288571
11 Fully factored 15 1112341988…55<15> 32×5×7×751×470205647
12 Fully factored 18 1116485160…39<18> 83×33804689×39792197
13 Fully factored 20 9572878239…41<20> 32×50341×2112896322…89<15>
14 Fully factored 24 1169352495…49<24> 3×112×239×10463×2435921×52883659
15 Fully factored 28 4152942728…43<28> 3×1877×2699×2732546304…47<21>
16 Fully factored 31 3875567907…15<31> 5×31×113×3613×38239×226637×7066752945…79<13>
17 Fully factored 36 2480755592…99<36> 83×103×311×571×1634075673…71<27>
18 Fully factored 39 1104600202…91<39> 307×727×3319×3586612171<10>×4157580451…31<20>
19 Fully factored 42 4188332299…63<42> 33×6978016489<10>×62228717767<11>×3572354285…63<20>
20 Fully factored 46 4420012001…51<46> 33×257×611670953×1041378731…53<34>
21 Fully factored 49 4526161433…61<49> 32×8519569×814010689×7251699477…69<32>
22 Fully factored 52 4641911734…17<52> 523×32579×2724315739…01<45>
23 Fully factored 53 2450618997…33<53> 3×17×23×61×3424900420…61<48>
24 Fully factored 55 5446135659…33<55> 43×547×578061223×1002238227…21<14>×6485347659…19<14>×6162467045…49<15>
25 Composite 58 2134935742…09<58> 13×17×19×283×813833×24090560519<11>×9163688059…51<35>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (35 digits) of term #25:
91636880594385933235475880650594051
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 '138' --type 49 --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":"138"},"type":49,"part":"last20","fr":0}}'