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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 #1100000009080658837 1,641 digits created 2026-08-13

Value

728414757340139022728337399230093383855934639247219927860782214724925082860197354217251869740685260887576267129872234126791490654598935946029137463738164528435026404249601976729512452014557922146804966021660476817397137093171458951397905619697450857697260848149723212694238433666272423738666664765991451117523496294670176978176465611674997535342284242078231725201153670132239744480655763791214143721865405539923417616792108353695804078895301929844810778311430414573392468321700586996629661395436552435059311774643072905913768884525354711153100914407164771121977896882570874990906306272340546359097734015707872029890596043067968515553330459160845779270304690417450258810643654382373326144222192727686499394744890838271212262070346352900778268193865504177079540513279081468846703494018118667653075926238415332350915572669776259240419330883520378755861040186183383429014878272509649457977470184396796573329023477575103014367308085689509828459545032723514499162530763294127429079738727630352203102207890392216398303347321069689185028983248126616116893691015347113928685157887181773310652630446665206934535702203836527378167705537034608317434866064444045996547263887578813191598833724606049771634953866704319603537575562784457547596983636210048011600662544223877515835359121103412432518296312191892758941913953275692997788910065309075715743252519992245738445176267724248966399232387767846346376417641636400864660099537461692364866543740865515249459532256967577636915181454713438429935378137003185267075136938125301251216914761324349853216457649967408940418868957157143706738392601319596902262216333443835511986861173976924168063820354455030888383
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 25 of the certificate chain of a 1,926-digit prime (158 intermediate primes).

Certified number1,926-digit prime
Certificatedownload
Certificate chainshow step 25 of 158

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080658837 --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":1100000009080658837},"decimal":true,"detail":2}}'