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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 #1100000009080133267 1,802 digits created 2026-08-12

Value

42293935109298701489219642463281590014771838235448088864794035379683237062648890473196535642471584299707598507639262242842396585192072005812592782118859643980218428744739414352455741991897174964997886934355192619623926228222705353836721104691595688040146473417784337156200102958968382437733039753168921037075717112460845448283960824269342138880699861160574910065162764745608963964372776351676314325937889190053730444867809795262589058754420537904270013422885139211412163255047053888061768840928658156370018671919422583221731529469755173790290116888581951570062080392656931895483414968759075329717927413638324413947877521730688658254521480286678572292822642510236167443292955022748212547936740286578185663070371709232405376318583913365437209032457490228182202025086585282409424310311258041529061191098387044216749720717895313181823788404756160392428762205568814397701029455498102312376767012318842713564268787679187764553284937825452882936468019592917742867335224702657807763797801066166345465709093686383500867639324136096903348155473254977760718182486876731023349816932179644135580510015320531748830385099010427376611463943065205477481406230997370283016708374279910005495173244782168368367096462007546262286154173827160334585524590705572405446346483635430681098084041582123330253272257077250627528805455497666767822891376903172481005011990595507940421219840317633291000428891826677587989907926891279973450149731573288326967552578814704919471026607900517897779181072306321108296228748997936412605766061765078691303217819567058547494428200732911134148623462741071676592651884282057191704754642234433011346534211076653788182648111619277424417347064683361783423409616155113272002589603969401830855674964290469863422637436502275524324165335858481566285854553945748240466824563137760548419356050214032845687
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 6 of the certificate chain of a 1,863-digit prime (144 intermediate primes).

Certified number1,863-digit prime
Certificatedownload
Certificate chainshow step 6 of 144

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080133267 --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":1100000009080133267},"decimal":true,"detail":2}}'