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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 #1100000009122750998 1,699 digits created 2026-08-30

Value

1758567552155367254601249267684145353409124100324655639442549245113060411775278184340775231890114383925686525215574754895664260209527392803110814969309871603925718791555975207994032932154957215264984554738666264967269507970102149582817880544949813725425998916423925734552169246444487525836139549399876209810625541604093315066650050060662785239628367276715566787121276697031002992784063489004291200171891987099509054517359850326641842857199341350368266638824289855432728025148819557319718650714608448952095368101750136785179855435517994950113413486067101662286848361882425886043640913635896338220357278134349325407130538000412895268784825158044625397957791402211397348156229330543768582844922194932456660036900655502603337657187925572202874068043576229646748374083225771655438268064334823979202894749885297361460730174842401328681383091356435283697743216923356905783221574846769129972073125382443876602977746266491611146625555107044717072884755707181390875313624902548529626445691922777450905120112479006739154759017493479859299389709833234226799464031392981112892694648135990548426699244616232583904357187949339359329433399779317260226710957978512355057720157231037328538201793656542487843925277204510702321081633487379558967651365345781604443890786648855188526113969919402387472963943177242613305151498892549879107652347241900905197678051389772330133921023796419578520328882180886865568322351951878928415442308273382043185667184602300887714134748156572731467525364544494914096527220520550084565575184460337487386921366253210937651112048349396241356684237437519107428476509717181241301291368915097547121937666834964868410835591680598235629976465248142928197713213272477106057694673135295138438418561
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 53 of the certificate chain of a 2,256-digit prime (240 intermediate primes).

Certified number2,256-digit prime
Certificatedownload
Certificate chainshow step 53 of 240

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009122750998 --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":1100000009122750998},"decimal":true,"detail":2}}'