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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
62861110635378 1965
628738802236 1965
628978805596 1965
629215033696 1965
629695037536 1965
629716297116 1965
629813778876 1965
6298135269377
62989542965198 ~1975
63059162692238 1965
630733784396 1965
6307930277937 1965
6309715143297 1965
6310310096497 1965
63103102226878
631315050496 1965
63131212120178
631791263596 1965
63179562293118
6324721503997 1965
63281398670318 1965
632995063936 1965
633114457094419 ~1977
633173799036 1965
6333111399597 1965
Exp. Prime Factor Digits Year
6333136731997
633312644702579
6336129146077 1965
63367243329298 1965
63367618461938
633895071136 1965
6340925363617 1965
634191268396 1965
6341930441137
6342171031537 1965
634213443760319
63439148447278 1965
6346341885597 1965
634733808396 1965
6349313968477 1965
63499722618638 ~1975
63587381522018 1965
636076360716 1965
6360761062737
63611194649678 1965
6362920361297 1965
636295757151939
636711273436 1965
63671194833278
63703428084178 1965
Exp. Prime Factor Digits Year
637037625...53027119169 2014
63727373440238 1965
637431274876 1965
6376196916737 1965
63773372434338 1965
6379310206897 1965
6379925519617 1965
6379926795597
638031276076 1965
638391276796 1965
638631277276 1965
6391371582577 1965
639973839836 1965
64033157521198 1965
6403735860737 1965
640813844876 1965
6412325649217 1965
64151112905778 1965
641533849196 1965
641575132576 1965
64157236097778
64187288841518 1965
64189349188178 1965
64231145162078 1965
64271123400338 1965
Exp. Prime Factor Digits Year
6430124434397 1965
64303123461778 1965
643812243...84138319308 2024
644391288796 1965
644511289036 1965
6451361932497 1965
6456783937117 1965
645775166176 1965
6462725850817 1965
6466327158477 1965
646675173376 1965
64693345460638 1965
6470982827537 1965
647631295276 1965
648173889036 1965
64853693927118 ~1975
6487136327777 1965
64891136271118 1965
6491932459517 1965
64919650488398
649213895276 1965
649516495116 1965
650333901996 1965
650631301276 1965
65063171766338
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