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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
5631287450502978 ~1985
5631299112625998 ~1984
5631317788384398 ~1986
5631361901017778 ~1986
5631421337885278 ~1985
5631623112632478 ~1984
5631761450540898 ~1985
5631973337918398 ~1985
5632001337920078 ~1985
5632043112640878 ~1984
5632093337925598 ~1985
5632387563238718 ~1985
5632391112647838 ~1984
5632439112648798 ~1984
5632541337952478 ~1985
5632637337958238 ~1985
5632651563265118 ~1985
5632751112655038 ~1984
5632799112655998 ~1984
56328079012491219 ~1988
5632853337971198 ~1985
5632859450628738 ~1985
5632883112657678 ~1984
5632993901278898 ~1986
5633363112667278 ~1984
Exp. Prime Factor Digits Year
5633521338011278 ~1985
5633651112673038 ~1984
5633759112675198 ~1984
5633807450704578 ~1985
5633833338029998 ~1985
5634061338043678 ~1985
56340614056523939
5634427563442718 ~1985
5634617338077038 ~1985
56348172704712179 ~1987
56351411690542319 ~1987
5635243563524318 ~1985
5635291563529118 ~1985
5635297338117838 ~1985
5635417338125038 ~1985
5635499112709998 ~1984
5635499450839938
5635589788982478 ~1986
56358072254322819 ~1987
5635921338155278 ~1985
5635921901747378
5635961338157678 ~1985
5636131901780978 ~1986
5636153338169198 ~1985
5636161338169678 ~1985
Exp. Prime Factor Digits Year
56362491803599699 ~1987
5636251901800178 ~1986
5636383563638318 ~1985
5636399112727998 ~1984
5636747450939778 ~1985
5637059112741198 ~1984
5637143112742878 ~1984
5637563112751278 ~1984
56376373608087699 ~1987
5637743112754878 ~1984
5637811902049778 ~1986
5637953789313438 ~1986
5638103112762078 ~1984
56383972706430579 ~1987
5638601338316078 ~1985
56386311466044079 ~1986
5638751112775038 ~1984
5638799112775998 ~1984
5639411451152898 ~1985
5639497338369838 ~1985
5639617902338738 ~1986
5639723112794478 ~1984
5639867451189378 ~1985
5640119112802398 ~1984
56403891353693379 ~1986
Exp. Prime Factor Digits Year
5640599112811998 ~1984
5640671112813438 ~1984
5640961338457678 ~1985
5641159564115918 ~1985
5641379112827598 ~1984
5641577451326178 ~1985
5641711564171118 ~1985
5641837338510238 ~1985
5641931112838638 ~1984
5642083564208318 ~1985
5642099112841998 ~1984
5642233338533998 ~1985
5642381451390498 ~1985
56424771692743119 ~1987
5642531112850638 ~1984
5642633338557998 ~1985
5642783112855678 ~1984
56430592708668339 ~1987
5643227451458178 ~1985
5643301338598078 ~1985
5643479112869598 ~1984
5643553338613198 ~1985
5643563112871278 ~1984
5643607564360718 ~1985
5643641451491298 ~1985
729
GIMPS The Prime Pages FactorDb.com
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25-05-04