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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
181953012911248179 ~1990
181963031819630319 ~1989
18196523363930478 ~1988
18196571363931438 ~1988
18196679363933598 ~1988
18196823363936478 ~1988
18197219363944398 ~1988
18197339363946798 ~1988
18197423363948478 ~1988
18197771363955438 ~1988
18198179363963598 ~1988
18198263363965278 ~1988
18198683363973678 ~1988
18199823363996478 ~1988
18199931363998638 ~1988
18200219364004398 ~1988
182004073276073279 ~1990
182004371092026239 ~1989
18200471364009438 ~1988
18200771364015438 ~1988
182016292548228079 ~1990
182017611325088200911 ~1994
18202139364042798 ~1988
18202403364048078 ~1988
18202451364049038 ~1988
Exponent Prime Factor Digits Year
18202643364052878 ~1988
18203239149266559910 ~1992
18203543364070878 ~1988
18203639364072798 ~1988
18203723364074478 ~1988
18204311364086238 ~1988
182044211092265279 ~1989
18204743364094878 ~1988
182050371092302239 ~1989
182053496918032639 ~1991
182059371456474979 ~1989
18206291364125838 ~1988
18206483364129678 ~1988
18207131364142638 ~1988
182075471820754719 ~1989
18209459364189198 ~1988
18209843364196878 ~1988
18210047265866686310 ~1992
182103171092619039 ~1989
18210359364207198 ~1988
182104071456832579 ~1989
18210743364214878 ~1988
18210971364219438 ~1988
18211103364222078 ~1988
18211223364224478 ~1988
Exponent Prime Factor Digits Year
18211439364228798 ~1988
18211499364229998 ~1988
18211619364232398 ~1988
18212123364242478 ~1988
18212303364246078 ~1988
182130671121924927311 ~1994
18213311364266238 ~1988
18213911364278238 ~1988
18213911131140159310
182143637285745219 ~1991
182144811457158499 ~1989
182145171092871039 ~1989
182147472914359539 ~1990
18214799364295998 ~1988
182157771092946639 ~1989
18215843364316878 ~1988
18216059364321198 ~1988
18216311364326238 ~1988
18216323364326478 ~1988
182173491457387939 ~1989
18217631364352638 ~1988
18217691364353838 ~1988
18219671364393438 ~1988
18219791364395838 ~1988
18219923364398478 ~1988
Exponent Prime Factor Digits Year
182199591457596739 ~1989
18220463364409278 ~1988
182205071822050719 ~1989
182213411093280479 ~1989
18221699364433998 ~1988
18221711364434238 ~1988
182226131093356799 ~1989
18222959364459198 ~1988
18223559364471198 ~1988
18223703364474078 ~1988
18223763364475278 ~1988
182240331093441999 ~1989
18224243364484878 ~1988
18224639364492798 ~1988
18225059364501198 ~1988
182250911822509119 ~1989
18225323364506478 ~1988
18225491364509838 ~1988
18225611364512238 ~1988
182261391458091139 ~1989
18227003364540078 ~1988
182272911458183299 ~1989
18227483364549678 ~1988
182276411093658479 ~1989
18227999364559998 ~1988
1305
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24-10-27