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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.

P · Proven prime
id #1100000009054508518 1,279 digits created 2026-08-07

Value

8920672462391746683612727997515188148286739052466602441718539096467504942343280505645486484802983910175411705059286493409096239048456661445779490922350931047681013647172209420277149707374346999232621840837207225684060159858048395228389725567563933866826825677515486964385381037556204102777739695285535386691949770512628638524937986082300997036335842480916719014546012309935154636615230077438116136644224600472663765908107474973838191225016435311135715593071887365402072157182885209240460970359823305795127157219122295188782852917932856515615273044880532471178201503578232055801454152497640176705306369685498112640086174273378404868474833334338799689714770221682584892552862813522799754862617578149978654541392082223348811187541985648930111519521821795399565616656190246463850822246777611944638314200281149497093427200383095054310014310621675873294150558483085690765658311431386234382492380681311756763403165327643487407328089011450442831234705343117854001652944094672684423547775725770288683883055787076173543440599698921039689805863005297279021666933988632712202810902080444747878932752872134982818363826438942978255015249744826998499736031513153681248922889188489451422408988558800781904867543635587363126910788700454095608667771986648622699399636579897997127870872317932641367
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 99 of the certificate chain of a 2,582-digit prime (187 intermediate primes).

Certified number2,582-digit prime
Certificatedownload
Certificate chainshow step 99 of 187

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054508518 --detail 2 --decimal
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":1100000009054508518},"decimal":true,"detail":2}}'