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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 #1100000009070502537 1,841 digits created 2026-08-10

Value

25448968047707324644032310803188896282626432163520801469739963953834798467184647856657310708918019015548718132353042206794151238383172912295205903065226508197292401378961605020365345013098789098194015119692095527625668382257075545694844659750818701712643341795329935567241468134912483723369818817328186238416145494681962426766890257309520460123704051491546965937520789611939724959664108737651207041398069130566048694173947575595225292028777210951539372769846749439163290172463266137492848137429776862585518170007494261579335191890036344915996258032287691144897758228244477112536504578082767985396676880934556350763548101537484499550275373277192565789358568615829727029001758910692767761363900542805625993858658619346851474187259092864769032214639241957493698395313506123680674594613602658656927047829948072061654811933825895895647705880534222365067667907100384078808139428484088750957930864322565105029716591344628547173788873496422421704330838880568715051124258538849549221318863279344876432268562711157660739707198281152495430423136577739735245177825038829325300949082147603989308163400646154765936112538962589020315501915901507190287635421109802410111927315742694593891515171245852275426251254546393024467282372224727009814115964833773682853199714240002567019502015102342230185060699329492788854879550417227132118134024639815280440763786633099808484556198041026241090574745677391421611890107985974670239769039558719909720929385140129122075705338750881557299650256099693796537187488151399929535022453237897904883320095978373971643875016598929971526668752269598834869871673734348274257668280278693322136151089671221059767336622151405854812341780963738458535368295772614241083023690125611883416248947755014218144596682763345601786378689756114164080323399676695343078085393975385738640071380377868915116972800871455699355971879044714243720919
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 50 of the certificate chain of a 2,498-digit prime (187 intermediate primes).

Certified number2,498-digit prime
Certificatedownload
Certificate chainshow step 50 of 187

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009070502537 --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":1100000009070502537},"decimal":true,"detail":2}}'