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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
8472479169449598 ~1985
8472539169450798 ~1985
8472617508357038 ~1986
8472847847284718 ~1987
8472923169458478 ~1985
8473001677840098 ~1987
8473097508385838 ~1986
84731411864091039 ~1988
8473217677857378 ~1987
8473631169472638 ~1985
8473739169474798 ~1985
8473901677912098 ~1987
8474159169483198 ~1985
8474183169483678 ~1985
8474353508461198 ~1986
8474357508461438 ~1986
8474363169487278 ~1985
8474663169493278 ~1985
8474723169494478 ~1985
8474777508486638 ~1986
8474849677987938 ~1987
8474911847491118 ~1987
8475067847506718 ~1987
8475191169503838 ~1985
84753232203583999 ~1988
Exp. Prime Factor Digits Year
8475419678033538 ~1987
8475563169511278 ~1985
8475671169513438 ~1985
84756892034165379 ~1988
8475793508547598 ~1986
8475899169517998 ~1985
8476001678080098 ~1987
84761591525708639 ~1987
8476379678110338 ~1987
8476571169531438 ~1985
8476691169533838 ~1985
8476757508605438 ~1986
8476763169535278 ~1985
8476823169536478 ~1985
8476883169537678 ~1985
8476991169539838 ~1985
8477099169541998 ~1985
8477219169544398 ~1985
8477431847743118 ~1987
8477453508647198 ~1986
8477783169555678 ~1985
8477881508672878 ~1986
84780131356482099 ~1987
8478083169561678 ~1985
8478131169562638 ~1985
Exp. Prime Factor Digits Year
84782699326095919 ~1989
84783832034811939 ~1988
8478521508711278 ~1986
8478551169571038 ~1985
8478623169572478 ~1985
8478629678290338 ~1987
8478719169574398 ~1985
8478803169576078 ~1985
8478893508733598 ~1986
8479043169580878 ~1985
8479511169590238 ~1985
8479649678371938 ~1987
8479703169594078 ~1985
8479799169595998 ~1985
8479979169599598 ~1985
8480063169601278 ~1985
84801774748899139 ~1989
8480243169604878 ~1985
8480249678419938 ~1987
84802492544074719
84806175427594899 ~1989
8480621508837278 ~1986
8480651169613038 ~1985
8480699678455938 ~1987
8481059169621198 ~1985
Exp. Prime Factor Digits Year
8481437508886238 ~1986
8481461508887678 ~1986
8481461678516898
84814811357036979 ~1987
8481881508912878 ~1986
8481911169638238 ~1985
8481983169639678 ~1985
8482277508936638 ~1986
8482343169646878 ~1985
8482403169648078 ~1985
8482559678604738 ~1987
8482913508974798 ~1986
8483003169660078 ~1985
8483261508995678 ~1986
8483539848353918 ~1987
8483593509015598 ~1986
8483653509019198 ~1986
8483759169675198 ~1985
8483779848377918 ~1987
8483897509033838 ~1986
8483963169679278 ~1985
8484053509043198 ~1986
8484149678731938 ~1987
8484181509050878 ~1986
8484577509074638 ~1986
949
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25-10-20