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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
5666821340009278 ~1985
5666833340009998 ~1985
5666971309416616710 ~1990
5667071113341438 ~1984
56672175327183999 ~1988
5667503113350078 ~1984
5667611113352238 ~1984
5667869453429538 ~1985
5667971113359438 ~1984
5667971453437698
5668037340082238 ~1985
5668037453442978
5668343113366878 ~1984
5668357340101438 ~1985
5668451113369038 ~1984
5668493340109598 ~1985
5668571113371438 ~1984
5668687566868718 ~1985
5668759566875918 ~1985
5668823113376478 ~1984
5668919113378398 ~1984
5669099113381998 ~1984
5669159113383198 ~1984
5669291453543298 ~1985
5669513340170798 ~1985
Exp. Prime Factor Digits Year
5669561340173678 ~1985
5669759113395198 ~1984
5669773104323823310 ~1989
5669821340189278 ~1985
5669903113398078 ~1984
5670089453607138 ~1985
5670149453611938 ~1985
5670193340211598 ~1985
5670403567040318 ~1985
5670593340235598 ~1985
5670701453656098 ~1985
5670869453669538 ~1985
5671019113420398 ~1984
56710191814726099
5671117340267038 ~1985
5671451453716098 ~1985
5671499113429998 ~1984
5671499453719938
5671579187162107110 ~1989
5671927907508338 ~1986
56719494537559219 ~1988
56721113743593279 ~1987
5672291113445838 ~1984
5672399113447998 ~1984
5672423113448478 ~1984
Exp. Prime Factor Digits Year
5672531113450638 ~1984
5672591113451838 ~1984
5672813340368798 ~1985
5672837340370238 ~1985
5672983567298318 ~1985
56729991021139839 ~1986
5673029794224078 ~1986
5673233340393998 ~1985
5673383113467678 ~1984
5673601340416078 ~1985
5673659113473198 ~1984
5673673340420398 ~1985
5673781907804978 ~1986
5673827453906178 ~1985
5673851113477038 ~1984
5674049453923938 ~1985
5674247453939778 ~1985
5674289453943138 ~1985
5674421340465278 ~1985
5674439113488798 ~1984
5674439453955138
5674463113489278 ~1984
5674631113492638 ~1984
5675063113501278 ~1984
5675489454039138 ~1985
Exp. Prime Factor Digits Year
56755131702653919 ~1987
5675599567559918 ~1985
5675723113514478 ~1984
5675843113516878 ~1984
56763132270525219 ~1987
5676371113527438 ~1984
5676641454131298 ~1985
5677079113541598 ~1984
5677163113543278 ~1984
5677193794807038 ~1986
5677261340635678 ~1985
5677289454183138 ~1985
56772891703186719
5677403113548078 ~1984
5677537340652238 ~1985
5677559113551198 ~1984
5677723908435698 ~1986
5677853340671198 ~1985
5677873908459698 ~1986
5677957908473138 ~1986
5678069454245538 ~1985
5678129794938078 ~1986
56782695791834399 ~1988
5678339113566798 ~1984
5678347567834718 ~1985
761
GIMPS The Prime Pages FactorDb.com
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26-03-08