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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 #1100000009057948621 1,520 digits created 2026-08-08

Value

70029445064961536232936797983862892781607179868130043415817071389563336560591167802661159566490409902452781143244069518317262152824012957257762018252528979727927362844829364691164238445166344431181972056918547923646940831204648971704809967373994934589996593052329861894564182425154316153169505537770464215107818309314894074252591923044454447217658496155411276846705731771582511296187380775481952281601749420586236369496208449570010012884589938689794385643928913186740542989368853543828693977583905675839316518823562690144358966284513002077852918579564232486455450129125884866870416572300618790639155970905349730397648180546476028783725086670045525972298464234036456444319741057146518281893713991582317188153825561956413534411773426204918421859679334274770317335952741455420013735569727771330725676718636053252250060714488577490989690635035281421406193778391528010310149602936306375422260854293523969882861999468297774043305827103544966777563749916438006085721118290348398850746255890696534137805089357599465248775101903464151063452175575134048717951654849581587742105179162931395343118103610235794998647691443046117859397206660658493255966073204504715460079681984571698523112142388105344761708635682953063078119501166308657870490160660443929619099369877819857889996169382695369100114141282930761596241327214651775210477927785778558866819121471247231793118986610288601153764391448099981555605973764376739600491856095208397070156498488128859077225020273031816272259284944119925674915028025201224706392308924316270943048403
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 73 of the certificate chain of a 2,454-digit prime (186 intermediate primes).

Certified number2,454-digit prime
Certificatedownload
Certificate chainshow step 73 of 186

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057948621 --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":1100000009057948621},"decimal":true,"detail":2}}'