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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 Dig. Year
21662505791943325011583912 ~2020
21663907375143327814750312 ~2020
21666382832343332765664712 ~2020
21670021445943340042891912 ~2020
21672031019943344062039912 ~2020
21672289502343344579004712 ~2020
21673440482343346880964712 ~2020
21673442389143346884778312 ~2020
21673595564343347191128712 ~2020
21673660231143347320462312 ~2020
21673836715143347673430312 ~2020
21674445647943348891295912 ~2020
2167546167131015...91711916 2023
21676009454343352018908712 ~2020
21678416929143356833858312 ~2020
21679476548343358953096712 ~2020
21680013943143360027886312 ~2020
21681580109943363160219912 ~2020
21683241569943366483139912 ~2020
21684958973943369917947912 ~2020
21685486775943370973551912 ~2020
21685714034343371428068712 ~2020
21686633597943373267195912 ~2020
21687773882343375547764712 ~2020
21688977323943377954647912 ~2020
Exponent Prime Factor Dig. Year
21691865411943383730823912 ~2020
21692531105943385062211912 ~2020
21692603270343385206540712 ~2020
21693629756343387259512712 ~2020
2169372097671930...69263115 2026
21693789047943387578095912 ~2020
2169433038472776...89241714 2024
21694436299143388872598312 ~2020
21696238988343392477976712 ~2020
21696912122343393824244712 ~2020
2169693348598895...29219114 2025
21697132541943394265083912 ~2020
21697294706343394589412712 ~2020
21700179287943400358575912 ~2020
21700524761943401049523912 ~2020
21700661081943401322163912 ~2020
21700998329943401996659912 ~2020
21701235608343402471216712 ~2020
21701397115143402794230312 ~2020
2170154891779505...25952714 2025
21701656823943403313647912 ~2020
21701859629943403719259912 ~2020
21705646784343411293568712 ~2020
2170698909791562...15048914 2024
21709294469943418588939912 ~2020
Exponent Prime Factor Dig. Year
21710180879943420361759912 ~2020
2171079786971910...12533714 2024
21711313831143422627662312 ~2020
21713132138343426264276712 ~2020
21713219653143426439306312 ~2020
21715551613143431103226312 ~2020
21716002997943432005995912 ~2020
21716280566343432561132712 ~2020
21717400547943434801095912 ~2020
21717916172343435832344712 ~2020
21720781789143441563578312 ~2020
21723441865143446883730312 ~2020
21728190559143456381118312 ~2020
21728418509943456837019912 ~2020
21731162057943462324115912 ~2020
21731787949143463575898312 ~2020
21733304099943466608199912 ~2020
21734236621143468473242312 ~2020
21734493188343468986376712 ~2020
21737725457943475450915912 ~2020
21737994470343475988940712 ~2020
21739845911943479691823912 ~2020
21740280919143480561838312 ~2020
21741981605943483963211912 ~2020
2174360349172609...19004114 2024
Exponent Prime Factor Dig. Year
21745738867143491477734312 ~2020
21747942260343495884520712 ~2020
21748687907943497375815912 ~2020
21749958409143499916818312 ~2020
21749965091943499930183912 ~2020
21750619087143501238174312 ~2020
21750867962343501735924712 ~2020
21751488089943502976179912 ~2020
21751871377143503742754312 ~2020
21752161232343504322464712 ~2020
2175442324613959...30790314 2024
21754506386343509012772712 ~2020
21754996058343509992116712 ~2020
21758700743943517401487912 ~2020
21759887857143519775714312 ~2020
21759984373143519968746312 ~2020
21760817354343521634708712 ~2020
21761416946343522833892712 ~2020
21762198667143524397334312 ~2020
2176280467071436...08266314 2024
21763129669143526259338312 ~2020
21765991424343531982848712 ~2020
21768532801143537065602312 ~2020
21769410422343538820844712 ~2020
21774054464343548108928712 ~2020
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26-07-19