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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 Digits Year
19663991393279838 ~1988
19664531393290638 ~1988
19664951393299038 ~1988
19665179393303598 ~1988
196658471966584719 ~1990
196658474719803299
19665911393318238 ~1988
19666079393321598 ~1988
19666319393326398 ~1988
196675033146800499 ~1990
19667891393357838 ~1988
196679931180079599 ~1989
19668023393360478 ~1988
19668179393363598 ~1988
19668263393365278 ~1988
196684571180107439 ~1989
19668503393370078 ~1988
196685471966854719 ~1990
196686611180119679 ~1989
196702911573623299 ~1989
19670471393409438 ~1988
19671791393435838 ~1988
196720911573767299 ~1989
19672319393446398 ~1988
19672379393447598 ~1988
Exponent Prime Factor Digits Year
19672403393448078 ~1988
196727875114924639 ~1991
19672811393456238 ~1988
19672883393457678 ~1988
19672979393459598 ~1988
19673039393460798 ~1988
19673099393461998 ~1988
196736513541257199 ~1990
19674659393493198 ~1988
19674841141658855310 ~1992
196751931180511599 ~1989
19675199224297268710 ~1992
19675391393507838 ~1988
19675559393511198 ~1988
196755593541600639
19676183393523678 ~1988
19676243393524878 ~1988
19676483393529678 ~1988
196765673541782079 ~1990
19676771393535438 ~1988
19677659393553198 ~1988
19677851393557038 ~1988
19678019393560398 ~1988
196781515116319279 ~1991
19678331393566638 ~1988
Exponent Prime Factor Digits Year
19678613216464743110 ~1992
19679339393586798 ~1988
19679519393590398 ~1988
19679963393599278 ~1988
19680359393607198 ~1988
19680431393608638 ~1988
19680911393618238 ~1988
19681943393638878 ~1988
19682339393646798 ~1988
19682363393647278 ~1988
19683071393661438 ~1988
196832531180995199 ~1989
19684139393682798 ~1988
19684391393687838 ~1988
19684739393694798 ~1988
19684919393698398 ~1988
19685227177167043110 ~1992
19685819393716398 ~1988
19686031188985897710 ~1992
19686203393724078 ~1988
196863011181178079 ~1989
196863611181181679 ~1989
19686371393727438 ~1988
196867694331089199 ~1991
196868931181213599 ~1989
Exponent Prime Factor Digits Year
19687043393740878 ~1988
19687403393748078 ~1988
19687763393755278 ~1988
196880511575044099 ~1989
19688183393763678 ~1988
19688243393764878 ~1988
19688411393768238 ~1988
196892091575136739 ~1989
19689251393785038 ~1988
19689599393791998 ~1988
19689623393792478 ~1988
19690103393802078 ~1988
19690823393816478 ~1988
19690943393818878 ~1988
19690991393819838 ~1988
19691051393821038 ~1988
19692143393842878 ~1988
196922171181533039 ~1989
196922211575377699 ~1989
196927131181562799 ~1989
196934171181605039 ~1989
19693631393872638 ~1988
19693643393872878 ~1988
19694039393880798 ~1988
19694183393883678 ~1988
1466
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25-12-14