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Small Mersenne Prime Factors
Prime numbers of the form Mp= 2p − 1 are called Mersenne primes. For Mp to be prime, p must also be prime.
Any factor q of a Mersenne number 2p − 1 must be of the form 2kp + 1, where integer k ≥ 0. Furthermore, q must be 1 or 7 mod 8.
Exponent Prime Factor Dig. Year
12242589593924485179187912 ~2018
12242744813373456468879912 ~2019
12243162893924486325787912 ~2018
12243310178324486620356712 ~2018
12243936260324487872520712 ~2018
12244036794173464220764712 ~2019
12244793434173468760604712 ~2019
12245410231124490820462312 ~2018
12245879617773475277706312 ~2019
12246483667124492967334312 ~2018
12247175750324494351500712 ~2018
12247360900173484165400712 ~2019
12247417799924494835599912 ~2018
12248776957124497553914312 ~2018
12249830689124499661378312 ~2018
12250257055773501542334312 ~2019
12250586132324501172264712 ~2018
12250647680324501295360712 ~2018
12250929455924501858911912 ~2018
12251042330324502084660712 ~2018
12251295680324502591360712 ~2018
12252585947924505171895912 ~2018
12252816731924505633463912 ~2018
12253294103924506588207912 ~2018
12253432295924506864591912 ~2018
Exponent Prime Factor Dig. Year
12253657442324507314884712 ~2018
1225417272412948...74184715 2026
12254682923924509365847912 ~2018
12255476059124510952118312 ~2018
12255482846324510965692712 ~2018
12255656138324511312276712 ~2018
1225663224235515...09035114 2024
12256687474173540124844712 ~2019
12257611340324515222680712 ~2018
12257733613773546401682312 ~2019
12258112310324516224620712 ~2018
12258221429924516442859912 ~2018
12258224429924516448859912 ~2018
12258572071124517144142312 ~2018
12258638663373551831979912 ~2019
12259032986324518065972712 ~2018
12259510241924519020483912 ~2018
1226079764818705...30151114 2023
12261127549124522255098312 ~2018
12261447098324522894196712 ~2018
12261532901924523065803912 ~2018
12261617935124523235870312 ~2018
1226176427832280...55763914 2025
12261844417124523688834312 ~2018
12262091252324524182504712 ~2018
Exponent Prime Factor Dig. Year
12262532557773575195346312 ~2019
12263566615124527133230312 ~2018
12263923913924527847827912 ~2018
12263953525124527907050312 ~2018
12264355103924528710207912 ~2018
12265060160324530120320712 ~2018
12265753099124531506198312 ~2018
12266644616324533289232712 ~2018
1226693936832433...06707315 2026
12266961428324533922856712 ~2018
12268979101124537958202312 ~2018
12269342399924538684799912 ~2018
12269738821124539477642312 ~2018
12270369035924540738071912 ~2018
12270604002173623624012712 ~2019
1227247783332569...82930315 2026
12274034129924548068259912 ~2018
12274332821924548665643912 ~2018
12276052723124552105446312 ~2018
12276111721124552223442312 ~2018
12276716137124553432274312 ~2018
12277403909924554807819912 ~2018
12277739792324555479584712 ~2018
12278016647924556033295912 ~2018
1227923485098479...94048716 2025
Exponent Prime Factor Dig. Year
12279360673124558721346312 ~2018
12279531643124559063286312 ~2018
12279663638324559327276712 ~2018
12280211051373681266307912 ~2019
12281160242324562320484712 ~2018
12282536465924565072931912 ~2018
12282876961124565753922312 ~2018
12282983809124565967618312 ~2018
12283626276173701757656712 ~2019
12283659977924567319955912 ~2018
12283927976324567855952712 ~2018
12284469059924568938119912 ~2018
12284770399773708622398312 ~2019
12285248579924570497159912 ~2018
12285497687924570995375912 ~2018
12287098115373722588691912 ~2019
12287237815124574475630312 ~2018
12288332293124576664586312 ~2018
1228934716393834...15136914 2024
1228934874711808...55731315 2023
12290326262324580652524712 ~2018
1229087740631585...54127115 2025
12291285811124582571622312 ~2018
12291631129124583262258312 ~2018
12294324931124588649862312 ~2018
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26-07-05