factordbrpc · fdb
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Inverse home prime · Base 3 of 925 length 50 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
30 Fully factored 23 2477183486…01<23> 4493×5513428637…57<19>
31 Fully factored 23 3617360529…70<23> 2×5×3019×52095961×22999830143<11>
32 Fully factored 24 5261623406…20<24> 22×5×11×13×151×239×3851×1323748133…43<13>
33 Fully factored 26 3028311132…21<26> 7×163×5717×173573×368689×72544469
34 Fully factored 26 9799682149…86<26> 2×318173×1539992731…91<21>
35 Fully factored 27 2455245832…14<27> 2×79×223×821×3023×2807706634…37<16>
36 Fully factored 28 2378937849…97<28> 7×13×599×4364302867…33<23>
37 Fully factored 28 7731231600…32<28> 24×118926953×4063014840…59<19>
38 Fully factored 29 4250057030…50<29> 2×52×29×412×107×1629578418…41<21>
39 Fully factored 31 5113789749…55<31> 5×7×17×114713×2885039×2596937971…27<17>
40 Fully factored 32 4812178490…54<32> 2×257×317×409×449×188911×3808429×2235355427<10>
41 Fully factored 34 4814271490…11<34> 3541×1359579635…71<31>
42 Fully factored 34 8920201990…72<34> 23×1115025248…09<34>
43 Fully factored 35 3010568171…69<35> 47×61×197×19919×589504219901<12>×4539417178…49<13>
44 Fully factored 36 3620931620…58<36> 2×1810465810…29<36>
45 Fully factored 36 5431397430…89<36> 53×1024791967…13<35>
46 Fully factored 36 8300814940…06<36> 2×109×223900530323<12>×1700627180…29<23>
47 Fully factored 37 3501440554…17<37> 29×79×577×3533×2510549×4105059223<10>×72746832541<11>
48 Fully factored 39 1142156478…09<39> 853×80953×1654030938…01<31>
49 Composite 39 6408054749…53<39> 761×8420571286…73<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 #49:
842057128671310733959849762297267673
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 '925' --type 13 --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":"925"},"type":13,"part":"last20","fr":0}}'