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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
137702327540477 ~1979
1377071110165698 ~1980
1377121413136318 ~1982
1377121661018098
13771332396211439 ~1984
137713782628237 ~1980
1377169550867618 ~1982
137737127547437 ~1979
1377377192832798 ~1981
1377553633674398 ~1982
13775891074519439 ~1983
1377737330656898 ~1982
1377749192884878 ~1981
1377751578655438 ~1982
1377757330661698 ~1982
137779382667597 ~1980
1377911248023998 ~1981
1377967909458238 ~1983
137797382678397 ~1980
137798327559677 ~1979
1378031110242498 ~1980
137810327562077 ~1979
137825382695197 ~1980
137831927566397 ~1979
1378373330809538 ~1982
Exp. Prime Factor Digits Year
1378427110274178 ~1980
1378441220550578 ~1981
1378703579055278 ~1982
1378777220604338 ~1981
1378801220608178 ~1981
1378961110316898 ~1980
13789973502652399 ~1984
13792392180301011311 ~1988
1379291110343298 ~1980
13794732400283039 ~1984
137951927590397 ~1979
1379549524228638 ~1982
1379621110369698 ~1980
1379641303521038 ~1981
137979782787837 ~1980
1379803910669998 ~1983
13798574387945279 ~1984
1380221110417698 ~1980
13802511242225919 ~1983
1380277331266498 ~1982
1380289303663598 ~1981
138041927608397 ~1979
1380419331300578
13804191573677679
138061127612237 ~1979
Exp. Prime Factor Digits Year
1380677110454178 ~1980
1380707358983838 ~1982
138077927615597 ~1979
138078182846877 ~1980
1380931138093118 ~1981
1380947248570478 ~1981
1380949303808798 ~1981
1380949331427778
1380959580002798 ~1982
138097127619437 ~1979
1380997414299118 ~1982
1381187110494978 ~1980
1381231138123118 ~1981
1381349414404718 ~1982
1381397773582338 ~1982
1381409110512738 ~1980
13814213177268319 ~1984
1381493994674978 ~1983
138155927631197 ~1979
138164327632877 ~1979
1381727110538178 ~1980
1381739442156498 ~1982
138190182914077 ~1980
1381993221118898 ~1981
138209927641997 ~1979
Exp. Prime Factor Digits Year
138212327642477 ~1979
1382221221155378 ~1981
138223782934237 ~1980
1382477193546798 ~1981
1382477525341278
138251927650397 ~1979
138265127653037 ~1979
13826632571753199 ~1984
1382677414803118 ~1982
138289127657837 ~1979
138293927658797 ~1979
1383209414962718 ~1982
1383323442663378 ~1982
1383377415013118 ~1982
1383449525710638 ~1982
138351783011037 ~1980
138365927673197 ~1979
138373783024237 ~1980
1383959581262798 ~1982
1384027138402718 ~1981
1384087664361778 ~1982
1384099470593678 ~1982
13842311245807919 ~1983
1384349193808878 ~1981
138439127687837 ~1979
306
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25-10-26