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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
29113691582273838 ~1989
29113739582274798 ~1989
29116259582325198 ~1989
291163571746981439 ~1990
29116751582335038 ~1989
29116931582338638 ~1989
29117639582352798 ~1989
29118983582379678 ~1989
29119991582399838 ~1989
29121143582422878 ~1989
29121359582427198 ~1989
291216411747298479 ~1990
29121899582437998 ~1989
29122403582448078 ~1989
29123483582469678 ~1989
29123999582479998 ~1989
29124059582481198 ~1989
291250494077506879 ~1991
291252771747516639 ~1990
29126231582524638 ~1989
29126711582534238 ~1989
29126939582538798 ~1989
29128523582570478 ~1989
29128751582575038 ~1989
29129651582593038 ~1989
Exponent Prime Factor Digits Year
291296992330375939 ~1991
291313931747883599 ~1990
29131559582631198 ~1989
29132039582640798 ~1989
29133011582660238 ~1989
291343214661491379 ~1991
29134631163153933710 ~1993
29135219582704398 ~1989
29135471582709438 ~1989
29135831582716638 ~1989
29136083582721678 ~1989
291378171748269039 ~1990
291378531748271199 ~1990
291397011748382079 ~1990
29139839582796798 ~1989
291408475245352479 ~1992
29141279582825598 ~1989
29142959582859198 ~1989
291431812331454499 ~1991
29143319582866398 ~1989
29146499582929998 ~1989
29146751582935038 ~1989
29146919582938398 ~1989
291469611748817679 ~1990
291478912331831299 ~1991
Exponent Prime Factor Digits Year
29147999582959998 ~1989
29148611582972238 ~1989
291498171748989039 ~1990
29150279583005598 ~1989
29151851583037038 ~1989
291524992332199939 ~1991
29152691583053838 ~1989
29152979583059598 ~1989
291529931749179599 ~1990
291532734081458239 ~1991
29153639583072798 ~1989
29154299583085998 ~1989
29154563583091278 ~1989
29154971583099438 ~1989
29155151583103038 ~1989
291553936414186479 ~1992
291556134081785839 ~1991
29156219583124398 ~1989
29157911583158238 ~1989
29158037139958577710 ~1993
29158163583163278 ~1989
29159303583186078 ~1989
291601211749607279 ~1990
29160311583206238 ~1989
29160959583219198 ~1989
Exponent Prime Factor Digits Year
29161199583223998 ~1989
29161403583228078 ~1989
29162519583250398 ~1989
29163779583275598 ~1989
29163791583275838 ~1989
291639712333117699 ~1991
29164403583288078 ~1989
29164451583289038 ~1989
291646792333174339 ~1991
291652672333221379 ~1991
291658611749951679 ~1990
291661875249913679 ~1992
291673492333387939 ~1991
291674296416834399 ~1992
29167811583356238 ~1989
29168159583363198 ~1989
29168231583364638 ~1989
291686771750120639 ~1990
29168759583375198 ~1989
29169191583383838 ~1989
29169383583387678 ~1989
291695094083731279 ~1991
291695211750171279 ~1990
29169863583397278 ~1989
291699712333597699 ~1991
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24-10-27