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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
46173563923471278 ~1991
46174679923493598 ~1991
461769412770616479 ~1992
461778191191387730311 ~1996
46178591923571838 ~1991
46178843923576878 ~1991
46179839923596798 ~1991
461800812770804879 ~1992
46182443923648878 ~1991
461824572770947439 ~1992
46182743923654878 ~1991
46183859923677198 ~1991
46184951923699038 ~1991
46185563923711278 ~1991
461856532771139199 ~1992
46186799923735998 ~1991
461874972771249839 ~1992
46187819923756398 ~1991
461878332771269999 ~1992
461879093695032739 ~1992
46188353110852047310 ~1993
461893874618938719 ~1993
46191683923833678 ~1991
46191863923837278 ~1991
46192871923857438 ~1991
Exponent Prime Factor Digits Year
46193111923862238 ~1991
46195343923906878 ~1991
461956932771741599 ~1992
46197323923946478 ~1991
46200463110881111310 ~1993
462006772772040639 ~1992
46201619924032398 ~1991
46201703924034078 ~1991
46201763924035278 ~1991
46202003924040078 ~1991
46202483924049678 ~1991
46202693110886463310 ~1993
46203851924077038 ~1991
462068172772409039 ~1992
462069077393105139 ~1993
46207319924146398 ~1991
46212923924258478 ~1991
46214879924297598 ~1991
462169274621692719 ~1993
462174893697399139 ~1992
462182532773095199 ~1992
46219619924392398 ~1991
46219643924392878 ~1991
462201972773211839 ~1992
46220389138661167110 ~1994
Exponent Prime Factor Digits Year
46221239924424798 ~1991
46221551924431038 ~1991
46222199924443998 ~1991
462243413697947299 ~1992
462263812773582879 ~1992
46226399924527998 ~1991
46227383924547678 ~1991
46232099924641998 ~1991
46232531924650638 ~1991
46233443924668878 ~1991
46233503924670078 ~1991
462343373698746979 ~1992
46234481258913093710 ~1994
46234931924698638 ~1991
46237511924750238 ~1991
46239059924781198 ~1991
46240679924813598 ~1991
462408972774453839 ~1992
46241999924839998 ~1991
46242263924845278 ~1991
46244279924885598 ~1991
46245323924906478 ~1991
462458114624581119 ~1993
46246253369970024110 ~1995
46246751924935038 ~1991
Exponent Prime Factor Digits Year
46246979924939598 ~1991
462478673699829379 ~1992
46247899157242856710 ~1994
46248539924970798 ~1991
46250063925001278 ~1991
46253159925063198 ~1991
462542936475601039 ~1993
46254431925088638 ~1991
46254443925088878 ~1991
46255199925103998 ~1991
46255619925112398 ~1991
46257791925155838 ~1991
46258631925172638 ~1991
46259461518105963310 ~1995
462608572775651439 ~1992
462611572775669439 ~1992
46261499925229998 ~1991
46263359925267198 ~1991
46263599925271998 ~1991
462639773701118179 ~1992
46265519925310398 ~1991
46265963925319278 ~1991
46266119925322398 ~1991
462664973701319779 ~1992
46266611925332238 ~1991
1989
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25-04-13