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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 #1100000009055089666 1,805 digits created 2026-08-08

Value

49078892618392900817389928417034349063255677357223630855992136459396972969724703087138151226314763900025461327134342207809697185142101093657848783345894835724536649566640718040572950310577036735432738055740036398920734024089778169980749428986925144740588805995577100479436772016838300859933791605347055445036266107977365311631722943089621292384208094029236014260235485019590536295128316264014789672221930973582990940416743020233278341932265118473607721875556594590280102185553571986104414340747312976108202644648024307512579273094601542125548848942159118741352058710591551073056358440283763160686876654455862356576312655191242082744952862705819861814809629154679028037747257347587374135422604841490267722394058239357227171882960071251498013984344408795014433415801342668583109980794201237482934190888621187274931900768021759783881237358441219450821233033127917442660835183201222848746282384465825193310252351298879143826799435404494793830261234508098329091052011083189709805358420073475459161625074582510596219187103599920015235842723129686295170121998545662640558023125002336540895993851040028458727220422459876544043817828374478080242532155720046565885391167042255538954706165560018930503721416652005063835373822789722571802336002660208295851650459892140207117872107972989317288858548657412260944035015344399547557405896904999128599416479243931335228778874815493696655022603003771349655564662917668089168995336304299603327370801578179133394848825242914099143678073737617675120309679353757930711377486248280185670846160162634643926563097804380209087086585466954724269268171346390831147014105126965044688603152385831018173441581669924435528199637218125292741177052549374616661794028168547399972393122944958005608549054912577825249465318580334391664848627160948983207836568184355261156114450781964250463763
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 63 of the certificate chain of a 2,523-digit prime (197 intermediate primes).

Certified number2,523-digit prime
Certificatedownload
Certificate chainshow step 63 of 197

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055089666 --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":1100000009055089666},"decimal":true,"detail":2}}'