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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 #1100000009042190261 1,247 digits created 2026-08-03

Value

34449977592213501167792376424207459686231809963556313569933532927899724243418281532570567078806900419475310662893829071136694384207428342434822312484930054243961467214116391545014498500910184959335198833213710149090051412644357988572763128995451785685984535139735578131557677851974305476737825537049940843649010106136872498450388198325679438490966977041426494245078868713559413047150705432931340447612322996557801709181588121375787368972370079803920723236875429507260405824874614648048584635753748034241116378624143048137943682279281334299682803925896957165386560525568719892663211768530850932312087116884686449641429587604593816426677974756371605534728216730731064773671691075909567768730924347958556561788276944526209527997474198482931277618262623530380835211395413850773448777269009852746308904346625161312303488981189826369990019441351241973639088955787848271891432985566397586581511350250700062216117357377189374697385844618831829720817228971640037507210025197627252769428343164635778108986138547626488189307213440049599242275339571970313374855263871947277572378611171051520279978362596288817017844829855637304236153719350241562573231528424796688315685455623478243552563992847243077822736627969937899615901611072528175162368504330617233221801
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 7 of the certificate chain of a 1,311-digit prime (110 intermediate primes).

Certified number1,311-digit prime
Certificatedownload
Certificate chainshow step 7 of 110

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042190261 --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":1100000009042190261},"decimal":true,"detail":2}}'