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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
4377723062296216...48451914 2025
43777549511987555099023912 ~2022
43784058494387568116988712 ~2022
43786523743187573047486312 ~2022
43786987153187573974306312 ~2022
4379423332611086...64872915 2026
43798278259187596556518312 ~2022
43799148653987598297307912 ~2022
43800834815987601669631912 ~2022
43809697586387619395172712 ~2022
43819477868387638955736712 ~2022
43821844412387643688824712 ~2022
43825499378387650998756712 ~2022
43826942618387653885236712 ~2022
43830654149987661308299912 ~2022
4383286531811577...14516115 2025
43836843611987673687223912 ~2022
43836997184387673994368712 ~2022
43848646046387697292092712 ~2022
43852348766387704697532712 ~2022
43853465053187706930106312 ~2022
43853918615987707837231912 ~2022
43854445597187708891194312 ~2022
43856105083187712210166312 ~2022
43856564119187713128238312 ~2022
Exponent Prime Factor Dig. Year
43858901035187717802070312 ~2022
43861958413187723916826312 ~2022
4387128919275519...04416715 2025
43873433653187746867306312 ~2022
43880085596387760171192712 ~2022
43883449577987766899155912 ~2022
43884553178387769106356712 ~2022
43887166903187774333806312 ~2022
43888074080387776148160712 ~2022
43888587961187777175922312 ~2022
43895470559987790941119912 ~2022
4389617807592387...73289715 2025
43898050352387796100704712 ~2022
4389877146478165...92434314 2025
43901027510387802055020712 ~2022
43904015839187808031678312 ~2022
4390410775397375...02655314 2025
43904117537987808235075912 ~2022
43907080163987814160327912 ~2022
4390938198911791...51552915 2026
43910435432387820870864712 ~2022
43910746165187821492330312 ~2022
43912565381987825130763912 ~2022
43922963900387845927800712 ~2022
43925820494387851640988712 ~2022
Exponent Prime Factor Dig. Year
43933688738387867377476712 ~2022
43936108091987872216183912 ~2022
43938649931987877299863912 ~2022
43938713345987877426691912 ~2022
43942675957187885351914312 ~2022
43947711241187895422482312 ~2022
43948738082387897476164712 ~2022
43948846213187897692426312 ~2022
43954114838387908229676712 ~2022
43958714012387917428024712 ~2022
43960038569987920077139912 ~2022
43963047482387926094964712 ~2022
43978348537187956697074312 ~2022
4397848764135277...16956114 2026
4397921594635365...45448714 2025
43992436988387984873976712 ~2022
4399581097973590...59435315 2026
43998565514387997131028712 ~2022
44003319377988006638755912 ~2022
44004904447188009808894312 ~2022
44004951799188009903598312 ~2022
44007362021988014724043912 ~2022
44008289132388016578264712 ~2022
44011067477988022134955912 ~2022
44012921191188025842382312 ~2022
Exponent Prime Factor Dig. Year
44017874563188035749126312 ~2022
44020777223988041554447912 ~2022
44023197895188046395790312 ~2022
44028504133188057008266312 ~2022
44029707443988059414887912 ~2022
44032038457188064076914312 ~2022
44033040601188066081202312 ~2022
44035965698388071931396712 ~2022
44042099249988084198499912 ~2022
44045429887188090859774312 ~2022
4404602501591101...53975115 2025
44047604807988095209615912 ~2022
4404836269879162...41329714 2025
44048966647188097933294312 ~2022
44052649579188105299158312 ~2022
44059273280388118546560712 ~2022
4406503332371718...96243115 2025
44070183629988140367259912 ~2022
44070519521988141039043912 ~2022
44071089905988142179811912 ~2022
44075003203188150006406312 ~2022
4408038674635377...83048714 2026
44083127666388166255332712 ~2022
4408979952112195...61507915 2026
44089862809188179725618312 ~2022
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26-03-15