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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
8420317505219038 ~1986
8420393505223598 ~1986
8420519168410398 ~1985
8420651168413038 ~1985
8420677505240638 ~1986
8420837505250238 ~1986
8420843168416878 ~1985
8420891673671298 ~1987
8421071168421438 ~1985
8421733114535568910 ~1990
8421737505304238 ~1986
8421773505306398 ~1986
8421821505309278 ~1986
84218272189675039 ~1988
8422019168440398 ~1985
84220392021289379 ~1988
8422181673774498 ~1987
8422763168455278 ~1985
8423117673849378 ~1987
8423231168464638 ~1985
8423321673865698 ~1987
8423333505399998 ~1986
8423797505427838 ~1986
8423903168478078 ~1985
8424077505444638 ~1986
Exp. Prime Factor Digits Year
84245931179443039 ~1987
8424817505489038 ~1986
8424869673989538 ~1987
8424973505498398 ~1986
84255531022862134311 ~1992
8425799168515998 ~1985
8425811168516238 ~1985
8425847674067778 ~1987
8426039168520798 ~1985
8426123168522478 ~1985
8426221505573278 ~1986
8426261505575678 ~1986
8426393505583598 ~1986
8426591168531838 ~1985
84266473370658819 ~1988
8426731842673118 ~1987
8427491168549838 ~1985
8427539168550798 ~1985
8427599168551998 ~1985
8427701505662078 ~1986
84278332696906579 ~1988
8428163168563278 ~1985
84281691179943679 ~1987
8428289674263138 ~1987
84283072022793699 ~1988
Exp. Prime Factor Digits Year
8428333505699998 ~1986
84284871517127679 ~1987
8428601505716078 ~1986
8428631168572638 ~1985
8428633505717998 ~1986
8429243168584878 ~1985
8429257505755438 ~1986
8429341505760478 ~1986
8429423168588478 ~1985
8429767842976718 ~1987
8430263168605278 ~1985
8430377505822638 ~1986
8430377674430178
8430473505828398 ~1986
8430479168609598 ~1985
8430731168614638 ~1985
8431487674518978 ~1987
8431637505898238 ~1986
8431751168635038 ~1985
8431799168635998 ~1985
8431931168638638 ~1985
8432197505931838 ~1986
8432309674584738 ~1987
8432321505939278 ~1986
8432471168649438 ~1985
Exp. Prime Factor Digits Year
8432537674602978 ~1987
8432581505954878 ~1986
8432647843264718 ~1987
8432849674627938 ~1987
8433211843321118 ~1987
8433263168665278 ~1985
8433779168675598 ~1985
8433779674702338
84339131349426099 ~1987
8433959168679198 ~1985
8434379168687598 ~1985
8434763168695278 ~1985
8434799168695998 ~1985
8434823168696478 ~1985
8434957506097438 ~1986
8435081674806498 ~1987
8435237506114238 ~1986
8435261674820898 ~1987
8435579168711598 ~1985
84355792024538979
8435711168714238 ~1985
8435743843574318 ~1987
8435831168716638 ~1985
8435939168718798 ~1985
8436023168720478 ~1985
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25-07-08