factordbrpc · fdb
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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 #1100000009018865657 1,020 digits created 2026-07-29

Value

221887956367622402378183632704271979437128296535280464512631041039857803163095311307948031588667265265574399188397278662169595246670547669555195937792196245482247396859268170646538232094801544588746135167469776347966955789429732365707877912863128965061269260243160030427007187066432744785279163230411315057659072362858194708684016100862043836497774723717650468197596571976522372221144789895589114478087971733086314826081160475998023851986224689615090322884630681216717095365920278783234517625380674895157968575605997693609056936077780274719192449755080817306344876278614883956772759711668027060657841896643264921841308157905602664401239354332838773943722896608029079437814356105698326831998118751832748343679772624247801307363799946903222298407425006387526596704513676790752045001144367183427452935099158576923532372034106985628842610168378206342717793592666202745003626833836790984206656179110165513210151327900639153034419618709415229857418527507978997913572657986429052327583828856446715274173466155612840061189786867
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 2 of the certificate chain of a 1,039-digit prime (69 intermediate primes).

Certified number1,039-digit prime
Certificatedownload
Certificate chainshow step 2 of 69

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009018865657 --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":1100000009018865657},"decimal":true,"detail":2}}'