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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 #1100000004870656071 2,016 digits created 2023-10-25

Value

320921219406259285080156599041967412957591298846970786255597544953002823475689358284868817791175116601571347250471500712582072228822355086279838883762311547340422112158599692908231628382331053149819832473979374083715700356006434045621975687507554067239627104143544722112090190868099550234854928170201182085991026653306255027382307567026816398063092939878174949445908157406106023137260391016977012592227438503381956308582120970461441352928021309195351754336190652539475729613429305080655719512947749673017160699918054859346418349949376704162180704146972645362262520109105703583082802944448896493434732876697188070223948099576076910996194152865056928065292212194743909988254469252901969988123147611065380501555075457433128894898834960933996815869277793299004978895371395078503684792144888168664521084125644840531502856353766227216875584234548070175771681709016467905876094604565210187000186598060472680860506126934476276191987836099591645471086449188951924842339635178534552498793559245971340011589658834691463336698324177735552922361679834286367950770282032986058057485137939186690791404064578163163587921842758645880105623547105383170742928661384017739672117879608112108044934077510801301023404205950101634406644634888832364609262783127856655271427685777170825902345909509429351760368073819427939449946401188946432494772366287004253693567483791355455960470059160593222750370682051295841266909660640531732046640054977384497499453749403837848229216009402344351011259345947586671669206235801483394249295288463521887753465349750850648826821146355983190239621020317016900224578050397582041896561394754689306152071561699260043651517748346994532983948833092112836389598347647620419513515918482195225184226063444267499206376542359110990784775984313378707609926780885767636745490961703854764679587378210256050222676001660559662703058952740598625782127513290542709117536242263792506077383175336975604997947227760449152265358381691403641766907418676543480821401369532399342243441220592460852291744282654430907280737148047609409
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 63 of the certificate chain of a 2,631-digit prime (295 intermediate primes).

Certified number2,631-digit prime
Certificatedownload
Certificate chainshow step 63 of 295

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004870656071 --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":1100000004870656071},"decimal":true,"detail":2}}'