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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
1207319289756578
12073633308174639 ~1984
120737996590337 ~1980
1207387120738718 ~1980
120743996595137 ~1980
1207681555533278 ~1982
120775124155037 ~1978
1207751314015278
120776996621537 ~1980
120791924158397 ~1978
1207981483192418 ~1982
120805772483437 ~1980
120811796649377 ~1980
1208177289962498 ~1981
1208239120823918 ~1980
120824324164877 ~1978
1208243289978338
120830324166077 ~1978
1208407120840718 ~1980
1208561386739538 ~1981
1208569265885198 ~1981
1208663676851298 ~1982
120874196699297 ~1980
1208849290123778 ~1981
120894172536477 ~1980
Exp. Prime Factor Digits Year
1208941556112878
120905372543197 ~1980
120911372546797 ~1980
1209113290187138
1209181266019838 ~1981
120933772560237 ~1980
1209463290271138 ~1981
120956324191277 ~1978
12095831572457919 ~1983
1209631217733598 ~1981
120967124193437 ~1978
12096714572556399
1209707580659378 ~1982
12097732613109699 ~1983
1209811120981118 ~1980
12098111354988339
1209811315518708910
1209853193576498 ~1981
12098771064691779 ~1982
120994796795777 ~1980
120995924199197 ~1978
1210003193600498 ~1981
1210039121003918 ~1980
121004996803937 ~1980
12101933291724979 ~1984
Exp. Prime Factor Digits Year
121021124204237 ~1978
121024172614477 ~1980
1210241750349438
121025924205197 ~1978
1210289653556078 ~1982
1210379895680478 ~1982
1210387217869678 ~1981
121040324208077 ~1978
1210409169457278 ~1981
1210411121041118 ~1980
121043924208797 ~1978
1210499217889838 ~1981
121052324210477 ~1978
1210523798945198
121059772635837 ~1980
121079372647597 ~1980
121079996863937 ~1980
1210817653841198 ~1982
121087124217437 ~1978
1210879581221938 ~1982
121088324217677 ~1978
1210883605441518
1210897193743538 ~1981
1210933290623938 ~1981
1210933557029198
Exp. Prime Factor Digits Year
1210999121099918 ~1980
1211051387536338 ~1981
121127924225597 ~1978
121133996907137 ~1980
1211407218053278 ~1981
121154324230877 ~1978
1211653266563678 ~1981
12116692908005619 ~1984
1211737484694818 ~1982
1211897363569118 ~1981
1211923193907698 ~1981
121199924239997 ~1978
121199996959937
1212121266666638 ~1981
1212149654560478 ~1982
1212187121218718 ~1980
121244324248877 ~1978
121252197001697 ~1980
121267772760637 ~1980
1212697776126098 ~1982
121285197028097 ~1980
121291772775037 ~1980
121304997043937 ~1980
121314172788477 ~1980
1213327121332718 ~1980
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25-04-13