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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 #1100000008680843962 2,176 digits created 2026-03-12

Value

2168070464866486735258236406535741787683951121244847510469665079668767441218567068069988848749262007682884016072834463760203844795765204206474091973945365323008545309327105720200435050468457645606804449646876721841205782979535884022117915939928146636541730387098928832843955722204303743336263148205574890097400509686209652156902243322995921274820209147367797779825882770613162539020396556164543109106119719000070559641664749750153708061172968314742214358714024158827668898842888661460115617641964056417396394958222559802518128292308681273783947669657653924598972672523300429255655294579170627302950525725240779100123047059819588937455501440471195342496093061297170613177776871881316763130187230111854509547397722187589167320985922829744979221903601285052765422733441890131208996871895367706485123798690600110688591953210707707487025991024311881146510315516052868769816448498205280706232338087852624702874322232931167696638097862944735692377861261460137472212600212773315178959745147447273415917599357498535173179405409579508101529639538519785300198151101413306348317558039747271954312984400319520163661631613320915130726631694354977546054887854309261410839825683064221130972794353282378680664092575078442126935779410100476050979655052570310038855240546259015897177933468761274693935012993659204500472218434590141701925307210640644784621002513786846258833801738250113709630263916904987436534774992608083820389724164243253730871995396654460168036212362582069529273647565681949527052385405114014675370272238941114483771984585353230275244161817223353297303078193676065833242613227777601836730738907983509494011772714050612666124445194523240343658251218672298677714719474675732837940269011206566300415969451791146203870511193391827571245902625145236871620344383769313935144550771686633842966499996637473424142442580310336989029187816774624081786560905117999690304380520553000065892802864184633009899215122491027571155755438506288048815073809279970589081811945703259888484220370017974234271649084250807523280284915174248383327449095469019348686333063191584068246375262323743776456933775630494244102831464504742508491232506279206788210324287780753559871181186332383957975007594165429
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 30 of the certificate chain of a 2,622-digit prime (173 intermediate primes).

Certified number2,622-digit prime
Certificatedownload
Certificate chainshow step 30 of 173

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008680843962 --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":1100000008680843962},"decimal":true,"detail":2}}'