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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
392729978545997 ~1982
39272991963649519
392741978548397 ~1982
3927449314195938 ~1984
392755178551037 ~1982
392761178552237 ~1982
3927929314234338 ~1984
392801978560397 ~1982
392816378563277 ~1982
3928667314293378 ~1984
392870378574077 ~1982
3928721235723278 ~1984
392906378581277 ~1982
3929249314339938 ~1984
392929178585837 ~1982
3929417235765038 ~1984
3929479392947918 ~1984
392953178590637 ~1982
3929581864507838 ~1985
3929657235779438 ~1984
39297291493297039 ~1986
3929741235784478 ~1984
3929957314396578 ~1984
3929977235798638 ~1984
3930221314417698 ~1984
Exp. Prime Factor Digits Year
3930271707448798 ~1985
3930331628852978 ~1985
3930517943324098 ~1985
39305411179162319 ~1985
393061178612237 ~1982
3930613628898098 ~1985
393068378613677 ~1982
3931087707595678 ~1985
3931261629001778 ~1985
3931349550388878 ~1985
3931379314510338 ~1984
393146378629277 ~1982
3931517314521378 ~1984
393152378630477 ~1982
3931649314531938 ~1984
3931721235903278 ~1984
3931933865025278 ~1985
393206378641277 ~1982
3932077629132338 ~1985
393239978647997 ~1982
3932503393250318 ~1984
3932657550571998 ~1985
3932717314617378 ~1984
3932861314628898 ~1984
3933091707956398 ~1985
Exp. Prime Factor Digits Year
393311978662397 ~1982
393313178662637 ~1982
3933131707963598
3933233235993998 ~1984
3933337236000238 ~1984
393343178668637 ~1982
3933569314685538 ~1984
3933577236014638 ~1984
3933731314698498 ~1984
3933871708096798 ~1985
3934261629481778 ~1985
393449978689997 ~1982
393458378691677 ~1982
39348731180461919 ~1985
393500378700077 ~1982
3935117236107038 ~1984
3935257629641138 ~1985
393541178708237 ~1982
39354112833495939
3935417236125038 ~1984
393547178709437 ~1982
3935627314850178 ~1984
3935719393571918 ~1984
393575978715197 ~1982
3935879314870338 ~1984
Exp. Prime Factor Digits Year
3936007393600718 ~1984
39360431574417219 ~1986
3936271393627118 ~1984
3936301629808178 ~1985
3936577629852338 ~1985
393668378733677 ~1982
393689978737997 ~1982
393701978740397 ~1982
3937561236253678 ~1984
3937567393756718 ~1984
3937771393777118 ~1984
3938087708855678 ~1985
3938257945181698 ~1985
393830378766077 ~1982
3938303945192738
3938447315075778 ~1984
3938447708920478
3938477236308638 ~1984
3938633551408638 ~1985
393869978773997 ~1982
39388271339201199 ~1986
393919178783837 ~1982
3939337236360238 ~1984
393944378788877 ~1982
3939521236371278 ~1984
600
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25-10-26