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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
287389157477837 ~1981
28738911609378979
2873911287391118 ~1983
2873933689743938 ~1984
287393957478797 ~1981
287402357480477 ~1981
28740294138601779 ~1986
2874169689800578 ~1984
28742111207168639 ~1985
287425157485037 ~1981
2874437402421198 ~1984
2874467747361438 ~1984
2874617402446398 ~1984
2874673632428078 ~1984
2874737172484238 ~1983
2874737689936898
2874917229993378 ~1983
2875001230000098 ~1983
28750631207526479 ~1985
28750791207533199 ~1985
2875097230007778 ~1983
287519957503997 ~1981
2875361172521678 ~1983
2875417862625118 ~1984
2875423460067698 ~1984
Exp. Prime Factor Digits Year
2875423690101538
2875681632649838 ~1984
2875709230056738 ~1983
287573957514797 ~1981
2875739517633038
2875913862773918 ~1984
28759131783066079
287617157523437 ~1981
2876221460195378 ~1984
2876261230100898 ~1983
287633957526797 ~1981
287641157528237 ~1981
2876551517779198 ~1984
287659157531837 ~1981
287660357532077 ~1981
2877179230174338 ~1983
2877221172633278 ~1983
2877239690537378 ~1984
2877397172643838 ~1983
287744357548877 ~1981
28776492071907299 ~1985
287765957553197 ~1981
28776594143828979
28776613395639999 ~1986
287777957555597 ~1981
Exp. Prime Factor Digits Year
2877817172669038 ~1983
2877841460454578 ~1984
2877929402910078 ~1984
2877937172676238 ~1983
2878147287814718 ~1983
2878303287830318 ~1983
2878333172699998 ~1983
2878409230272738 ~1983
287845157569037 ~1981
2878573633286078 ~1984
2878591460574578 ~1984
2878699287869918 ~1983
2878783978786238 ~1984
2879299287929918 ~1983
2879351748631278 ~1984
2879423691061538 ~1984
2879447230355778 ~1983
2879509691082178 ~1984
287969957593997 ~1981
287975957595197 ~1981
2879759691142178
287977157595437 ~1981
28797914838048899 ~1986
287984357596877 ~1981
287987957597597 ~1981
Exp. Prime Factor Digits Year
2879999230399938 ~1983
2880173172810398 ~1983
2880173403224238
2880281230422498 ~1983
2880433172825998 ~1983
2880461172827678 ~1983
288071957614397 ~1981
2880739518533038 ~1984
2881009691442178 ~1984
2881031749068078 ~1984
28811171325313839 ~1985
288137957627597 ~1981
2881513461042098 ~1984
2881547691571298 ~1984
2881861172911678 ~1983
2881937172916238 ~1983
2881937403471198
2881943922221778 ~1984
288230357646077 ~1981
28823512305880819 ~1985
2882489230599138 ~1983
2882501172950078 ~1983
288254357650877 ~1981
2882603922432978 ~1984
2882717691852098 ~1984
500
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26-03-08