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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
154744971237959779 ~1989
15474551309491038 ~1987
15474659309493198 ~1987
154748034023448799 ~1990
15475259309505198 ~1987
15475403309508078 ~1987
154754511238036099 ~1989
154756311238050499 ~1989
15475871309517438 ~1987
15475991309519838 ~1987
154762871547628719 ~1989
15476501928590078 ~1988
15476663309533278 ~1987
15477083309541678 ~1987
15477239309544798 ~1987
154775597429228339 ~1991
15477911309558238 ~1987
154782711238261699 ~1989
15478583309571678 ~1987
154786491238291939 ~1989
154789275262835199 ~1990
15479111309582238 ~1987
15479153928749198 ~1988
15479363309587278 ~1987
15479413928764798 ~1988
Exponent Prime Factor Digits Year
154794891238359139 ~1989
15480203309604078 ~1987
15480433928825998 ~1988
154806912476910579 ~1989
154808694644260719 ~1990
15481073928864398 ~1988
15481223309624478 ~1987
15481439309628798 ~1987
15481463309629278 ~1987
15481859309637198 ~1987
15482447346806812910 ~1992
154839071548390719 ~1989
15483971309679438 ~1987
154840871204661968711 ~1993
15485339309706798 ~1987
15485363309707278 ~1987
154858372168017199 ~1989
154858632477738099 ~1989
15485917929155038 ~1988
15486791309735838 ~1987
15487151309743038 ~1987
15487931309758638 ~1987
15488279309765598 ~1987
154886871239094979 ~1989
154889532478232499 ~1989
Exponent Prime Factor Digits Year
154891512478264179 ~1989
15489899309797998 ~1987
15490883309817678 ~1987
15491039309820798 ~1987
15491053929463198 ~1988
15491291309825838 ~1987
15491603309832078 ~1987
154916592788498639 ~1989
15491711309834238 ~1987
154922591549225919 ~1989
15492311309846238 ~1987
15492623309852478 ~1987
154928811239430499 ~1989
15492959309859198 ~1987
154929911549299119 ~1989
15493403309868078 ~1987
154935072478961139 ~1989
154935072788831279
15493733929623998 ~1988
15494321929659278 ~1988
15494411309888238 ~1987
154947891239583139 ~1989
154949091239592739 ~1989
15495059309901198 ~1987
15495131309902638 ~1987
Exponent Prime Factor Digits Year
15495719309914398 ~1987
15496139309922798 ~1987
15497543309950878 ~1987
15497879309957598 ~1987
154978911239831299 ~1989
154981372169739199 ~1989
154989292169850079 ~1989
154990072789821279 ~1989
15499321929959278 ~1988
15499391309987838 ~1987
154997111549971119 ~1989
15500033930001998 ~1988
15500099310001998 ~1987
15500423310008478 ~1987
15500519310010398 ~1987
15500711310014238 ~1987
15501119310022398 ~1987
15501179310023598 ~1987
15501803310036078 ~1987
155019071550190719 ~1989
15501911310038238 ~1987
15501971310039438 ~1987
155020491240163939 ~1989
15502523310050478 ~1987
155030092170421279 ~1989
1297
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25-10-20