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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 #1100000008680031303 1,478 digits created 2026-03-12

Value

53243379876534071375575280324255708491136669764292982883183115906875518797045656901840612929033445826391826618621395323577153493910534714099954668044674324353549277799763398089987279342610377776391569783466058655739282571264208034621405331556711465288344482364954156662782418503786120500944471862245697220434195308121701613161567095431832337418169187482584977852946647107260356084501231059926560305326499105217419460537081427691858435842851517080606022363031281767507291370654681416701181870827295296022565436956367147528379103124540476411775296109229699254951946982122898044931114045871284066411933193836563128190934718733361200329876137255969217666450903427666584129303224325416873216330156792459551296588010264094790872322368247888714593504011122927540291310223987518656463330633172333027386036373810080428716817356547463230770329597696550425958523819040689503566985269102910406417795343840869117818086585040319479064443374275355561783095700489555516369614855166538988629989439664992763615654027193402281220479050652899962862252485337010636768641154404894232696793899403415164640694710574566726976892773794898020985112840644433164036222921917274876109885615308830429508904886397724936303541162047997414159704449892206141031950337045230037338034201384193608419231500464920586876333869329961165223239369953686210389319656868732181397670476452048520057267645847290405651246692770364139414490599734003716738520854122086411691933783631011542639181464337277048589890832169386878661
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 49 of the certificate chain of a 1,975-digit prime (206 intermediate primes).

Certified number1,975-digit prime
Certificatedownload
Certificate chainshow step 49 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008680031303 --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":1100000008680031303},"decimal":true,"detail":2}}'