factordbrpc · fdb
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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

C · No factor known
id #1100000009172403191 38 digits created 2026-09-23

Value

1215494693…09<38>
term (((260838816398033003651114708301927708636567902)/2)/29)/369991
1215494693…09<38> partial
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Is factor of
Trial factoring & ECM effort 11 · TF complete · 2 ECM stages

Work the background scanners have done on this number, from its position in the scanner queue.

Trial division up to 100G
ECM effort P-1 B1=500000 · P+1 c=3 B1=50000 next: ECM c=15 B1=150000

Report factors

Paste anything - plain factors, a GMP-ECM run, a factor list. Every number found is checked for divisibility here; the ones that divide are submitted.

From the command linefdb · curl
fdb
fdb number id:1100000009172403191 --detail 2
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009172403191},"decimal":false,"detail":2}}'