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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 #1100000008676370216 1,127 digits created 2026-03-10

Value

12403006953054960035893229823126258164964322983184560789253796056166119189331053513523000847834844577290301499721104875107551536620482065711650462034207624680208500401655347026340046538379667490697027346064838464346895541111879552354933528067893792780625601633751118082925333160917641008511572493721129967816819127509810393318862840628787870168214382750190922446856508080316611955572668735015223642059841463171193378006699013612609705561778987889515900264981903684145387553057523640780118517625914727867516793869862588623824574301453810727985533655835606307976546663072827999334883914182020559105495104768699415720377878362270275686650528667255200986807164809805110077495650290323911630852701415602610397705612963503518419301594275126108009495539346649358934547866473385624845365284767516334078776151053074506984676241613164285923087212680638284219115056105987725664310298925693144178239733777372697019351631092508961729698013393580238697456431524413205537286532362336370481895672034450668916677732799896199654378053416092268607631457769254525575270537398430789518527802618089095466888470056328265856892401196382396818470725481
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 32 of the certificate chain of a 1,425-digit prime (153 intermediate primes).

Certified number1,425-digit prime
Certificatedownload
Certificate chainshow step 32 of 153

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676370216 --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":1100000008676370216},"decimal":true,"detail":2}}'