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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 #1100000009050519988 1,698 digits created 2026-08-06

Value

610016810749287899484221064078912093693845577057609601484664108641440910603838714725582514115428815909452065607909855334129251533726362747637796635564229361252947993578119983869372837605588035918484858830106370918560297812930336793398294521133248986709458119318200072046958235552877831263971892160398371332037175747565323994810543449384567559062251422360231279094653726756078064191168792450416275376977226099164603916112490298289736625394466351852834103251193954339317291811518550449716731436909844090002938259888409179323262353399039571299505858614181952148789162240030372429746897922965021968005340956112184036867343800988215369763293164087952019992512305718228410421297569164739420608545029233469021111032754017189025786026680061954378393351133455448752504077832317391955553879161899369886770272918256362369832453883690979821283537156194384520932738695861915253911057924081685166123405124204264072225704362347210501418188710276409574893961187508719380789464335889460805998521756337922555298092511886518007156989082245065157144998982775304940277969304564494862898773334240495225200767485438396820243473177903148338768204266090143639839154907598612898591596659350221090234234976026470017492516021000405497229021063444229720330502052331481437660437074632408537102777848622447659584321649063853533251365211051274794663255137201957039762064756019246388913159752405128054126998803350384776476351399852208811413021361431086101656890272552541901734260067427771344504743144000313612246895957919086268456890845686189947316656904182807453057814812659705650816694739563248812009056216290717457194622294684199923734505748766641817183705699208567541393779943616072477448821230928709273713079999996246749906541
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 77 of the certificate chain of a 2,695-digit prime (196 intermediate primes).

Certified number2,695-digit prime
Certificatedownload
Certificate chainshow step 77 of 196

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009050519988 --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":1100000009050519988},"decimal":true,"detail":2}}'