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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 Digits Year
18095639361912798 ~1988
18096131361922638 ~1988
180961371085768239 ~1989
18096359361927198 ~1988
18096719361934398 ~1988
180969131085814799 ~1989
180973611085841679 ~1989
180976211085857279 ~1989
180978896877197839 ~1991
18098471361969438 ~1988
18098651361973038 ~1988
180986832895789299 ~1990
18098771361975438 ~1988
18098819361976398 ~1988
18098831361976638 ~1988
18098891361977838 ~1988
18099479361989598 ~1988
18099671361993438 ~1988
18099803361996078 ~1988
18100319362006398 ~1988
18100583362011678 ~1988
18100763362015278 ~1988
18101159362023198 ~1988
181014292534200079 ~1990
181015611086093679 ~1989
Exponent Prime Factor Digits Year
18102517260676244910 ~1992
18102923362058478 ~1988
181031932534447039 ~1990
181053779776903599 ~1991
18105539362110798 ~1988
18105779362115598 ~1988
18105863362117278 ~1988
18106043362120878 ~1988
18106271362125438 ~1988
18106499362129998 ~1988
181069391810693919 ~1989
181070831810708319 ~1989
18107651362153038 ~1988
18107879362157598 ~1988
18108971362179438 ~1988
18109103362182078 ~1988
181091271448730179 ~1989
18109271362185438 ~1988
181093671448749379 ~1989
181096811086580879 ~1989
18109691362193838 ~1988
181097711810977119 ~1989
18110483362209678 ~1988
18110759362215198 ~1988
18111251362225038 ~1988
Exponent Prime Factor Digits Year
18112019362240398 ~1988
181125111449000899 ~1989
18112931362258638 ~1988
18113411362268238 ~1988
18113663362273278 ~1988
18114203362284078 ~1988
18114611362292238 ~1988
181146972898351539 ~1990
18115043362300878 ~1988
181151211086907279 ~1989
18115211362304238 ~1988
18115991362319838 ~1988
181160171086961039 ~1989
181160711811607119 ~1989
181163331086979999 ~1989
181167671811676719 ~1989
18117023362340478 ~1988
18117191362343838 ~1988
18117251362345038 ~1988
181173312898772979 ~1990
181176011087056079 ~1989
18117719362354398 ~1988
18117791362355838 ~1988
18117923362358478 ~1988
18118211362364238 ~1988
Exponent Prime Factor Digits Year
18118283362365678 ~1988
181182974348391299 ~1990
18119303362386078 ~1988
18119351362387038 ~1988
181194117610152639 ~1991
181198191449585539 ~1989
18119879362397598 ~1988
18120059362401198 ~1988
18121253547261840710 ~1993
181214691449717539 ~1989
181216031812160319 ~1989
181220571087323439 ~1989
181225571087353439 ~1989
18123263362465278 ~1988
18124019362480398 ~1988
18124559362491198 ~1988
181246971087481839 ~1989
18124763362495278 ~1988
181248312899972979 ~1990
18125351362507038 ~1988
18125603362512078 ~1988
18125843362516878 ~1988
18125903362518078 ~1988
18126791362535838 ~1988
18127019362540398 ~1988
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