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 #1100000009067821260 1,401 digits created 2026-08-10

Value

870541490472279903529585448521761691021467791765615560835796249999411932450395261075954273622716511122851586910168477839704079231505434904362660559215831455125165431317690982963060349275765964552973158955132437140655061778372206839489111608347685432318213075898607289193537115945490632379618173073223124629396167485857063562166308280142262763718286863578675614106954191181433999290445048453033626509246091597058473742629287984890492035744894137784674771882309067429265989805829327561971319114918654236785843392131938440925813011893616049563032975667654235017199297658223785394378174911996348349353048706701277581700904964901744430100614522748536067724496813174920427557615728578197893507792244930337414387638714646027097706798240853552238803525931609045812930622869160175732962700893378870434408718345719633363546818296236241916033405056196703827463928521504062688576433215305137590380629485834644226414476056764810554760198189988031182608058615507430519670450812559031805724517891748906842884758091434540089166295019213091524900998183644791606008817240492871393200237409825407258660119469752505403967266763964303154352527305855114202371636740214151568828808990995239436916751169317577234149881638365531582674134346127678375942974811659241226389033480870498121284454772911314254598561019661132079384032806252969331002257217044672421449272003212737697949496740777692085493473352885970393461076575828713
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 81 of the certificate chain of a 2,491-digit prime (185 intermediate primes).

Certified number2,491-digit prime
Certificatedownload
Certificate chainshow step 81 of 185

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009067821260 --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":1100000009067821260},"decimal":true,"detail":2}}'