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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 #1100000008753399230 2,049 digits created 2026-04-14

Value

641088453882934881371439742173649816593030249807933428302702046541732138250080863550911097546811807504933421511635161018678469130350178945417299279624331214880447228833604380789730920938760649820325605642172856858507107122199588618216198120286166414465468275631052752241549194366146800856523607233447536962745699212539718517785140744278062675520070784667396773158829857192069260206053600411961688280588956302833153969632482535693686600378768114396032867270747637123276668606559104211286887592748139381169953501315509570176919016025187607179916998072176441580946092128162276442342820181975845181395773658727835090396516895142406467773733267925497657423094313727841210184195722249580418914062631768267221572226184251313192071393875041140415386948824794570736268921522768107010955940975559398505795025778108548461987543526861913812215036146081758431132583925952289726685475138478182394901175679131580987177113354090578089254878507326521510334664231320732348959820547133349091946886396949624595204469598528709898207536835151101236029989781060186572153220963828352663264630876922331341759348172985361955527223372891307595946864100631932915522516299958971266751724466962764647476951041334704017349089742196577158081694740440319876591686185102278405376645620275833630353049040470947573095462042598485647815838316719309452068940942100620364214177686644860802772081386320585107123746446461447214373649261712581449196315752988755362099627330808181567216834611871041699157213171723749848841211104340427048934750755328854204919793944633393581575746473511064048298876997456452960879351610746886869508685979898791600541564880167149620972229087130906877144080256800614755659436741195140048860700017137645734965421651714119462201565250593411491434590814640584651397380751474682139990506035317526142309340487859784946944654626727659780858188425481789469346159499247335683142048762321399311215007407471744756818450468970455419519781390556285420820832271601347941124773683710154552876227246055357356832288240240340242497874700233151767940964896094264441437321838194453
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 60 of the certificate chain of a 2,746-digit prime (208 intermediate primes).

Certified number2,746-digit prime
Certificatedownload
Certificate chainshow step 60 of 208

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008753399230 --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":1100000008753399230},"decimal":true,"detail":2}}'