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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.
Exp. Prime Factor Digits Year
6105809854813278 ~1986
6105893366353598 ~1985
61058991099061839 ~1986
6106151122123038 ~1984
6106673366400398 ~1985
6106693977070898 ~1986
6106747610674718 ~1986
6106787488542978 ~1985
6106823122136478 ~1984
6106931122138638 ~1984
6106993366419598 ~1985
6107291122145838 ~1984
6107317977170738 ~1986
6107593366455598 ~1985
6107741488619298 ~1985
6107819488625538 ~1985
6107999488639938 ~1985
61080016840961139 ~1988
6108079610807918 ~1986
6108439610843918 ~1986
6108461366507678 ~1985
6108607977377138 ~1986
61086535253441599 ~1988
6108749488699938 ~1985
6108779122175598 ~1984
Exp. Prime Factor Digits Year
6108853366531198 ~1985
6108857366531438 ~1985
61088891343955599 ~1987
61089413421006979 ~1988
6109093366545598 ~1985
6109331122186638 ~1984
6109703122194078 ~1984
6109751122195038 ~1984
6109871122197438 ~1984
6109871488789698
6109997488799778 ~1985
61101291466430979 ~1987
6110411122208238 ~1984
6110477488838178 ~1985
6110519122210398 ~1984
6110549488843938 ~1985
6111023122220478 ~1984
61111391466673379 ~1987
6111221488897698 ~1985
6111263122225278 ~1984
6111383122227678 ~1984
61113891466733379 ~1987
6111797366707838 ~1985
6112079122241598 ~1984
6112391122247838 ~1984
Exp. Prime Factor Digits Year
6112409855737278 ~1986
6112439122248798 ~1984
6112501366750078 ~1985
6112541489003298 ~1985
6112553366753198 ~1985
6112657366759438 ~1985
6112703122254078 ~1984
6112763122255278 ~1984
6112919489033538 ~1985
6112943122258878 ~1984
6113011978081778 ~1986
6113039489043138 ~1985
6113111122262238 ~1984
6113201366792078 ~1985
6113279489062338 ~1985
6113309855863278 ~1986
6113363122267278 ~1984
6114209489136738 ~1985
6114263122285278 ~1984
6114539122290798 ~1984
6114593366875598 ~1985
6114623122292478 ~1984
6114767489181378 ~1985
6115001489200098 ~1985
6115337366920238 ~1985
Exp. Prime Factor Digits Year
6115513366930798 ~1985
6115547489243778 ~1985
61158773302573599 ~1987
61159091834772719 ~1987
6115979489278338 ~1985
6116161366969678 ~1985
61161971467887299 ~1987
6116647611664718 ~1986
6116699122333998 ~1984
6116717489337378 ~1985
6116833367009998 ~1985
6116953367017198 ~1985
6117341367040478 ~1985
61173896362084579 ~1988
6117491122349838 ~1984
6117599122351998 ~1984
6117641489411298 ~1985
6117851122357038 ~1984
61179011835370319 ~1987
6117919611791918 ~1986
6117959122359198 ~1984
6117983122359678 ~1984
6118157489452578 ~1985
6118261367095678 ~1985
61185371835561119 ~1987
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25-11-02