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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 #1100000009115537408 2,144 digits created 2026-08-28

Value

12402204353442080563848588887446330179954732654196590090138908052888234334276417369453128122982329753721099545115848449788446779894020540925600458652744971028232814652733866700026729620301057043201299922704869201859146482055042105963918834227821987131560480803501136371169582520960191299474354549725289810423719490305952138415835430636061482113312735823670344150669574571442782713715623628821764040122158692405030397146512988819862426840273279830099004749078245429257423869420592801365479853383090377159805248233562778099246667558158841500652162095682741961639399146514963586744579345588066704302277343308036534901413648680218256098610551244913411373291319241952173424968565601658294115278373478865189671250609381593737548104800132643572167164756333872643001949269043424524689435444148792970823799522484328827100613714602821382902467976106572193146913852005160946106190236546592926589195861006961603721101914866451819626458047155230224373192811107437562438198783824005511995564736694400216016473824903700603641728928829090862623730800419713175026358235491386264049573874296808088737903640530580233377539505169937764539154187749527746205186325737334516979563396483738494645855084102230034061570499914016939902403486559165605925230246979721839141800739995285158896301092223557105912944779509685594456919915390875573849928498410680377702091084766177367400005837736399822301663492318025496594190989355315692419201167041909388652007193148398853092200019055739993399564536033016263181923551945427569724179349114467423019681368020206192099577012046320144744684252675264194323930058005054809682168396742703087154873380093536002337991608439311570331902570521259734137277483209616720588638000986718502193986583037915905968502002670396375997460080981648943963248086152571631874991516662752134315359650008303638851088607042905345869165666217794154613570552269616779771009806815683088131184771634611489937778618498115232481923310353491134529993218227312224672909058768896698094794333378805049163423755486647323801210739816747564252665677432466348766224747490096943408186914731802944511481133465473709106608801266278750018651890577483165211979951492846088047
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 83 of the certificate chain of a 3,016-digit prime (316 intermediate primes).

Certified number3,016-digit prime
Certificatedownload
Certificate chainshow step 83 of 316

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009115537408 --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":1100000009115537408},"decimal":true,"detail":2}}'