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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
2062231206223118 ~1982
2062273123736398 ~1981
2062339371221038 ~1983
2062381123742878 ~1981
20624931154996099 ~1984
2062519206251918 ~1982
2062597990046578 ~1984
2062693123761598 ~1982
2062759495062178 ~1983
206288341257677 ~1980
2062979371336238 ~1983
2063021123781278 ~1982
2063213288849838 ~1982
2063521330163378 ~1983
2063563206356318 ~1982
2063573169625700710 ~1987
2063627371452878 ~1983
206365141273037 ~1980
2063707371467278 ~1983
2063777165102178 ~1982
20638191031909519 ~1984
2063839371491038 ~1983
2063857330217138 ~1983
2064121123847278 ~1982
206414341282877 ~1980
Exp. Prime Factor Digits Year
206429941285997 ~1980
206437141287437 ~1980
20648473840615439 ~1985
2064857165188578 ~1982
2064877123892638 ~1982
206489941297997 ~1980
2064943702080638 ~1983
2064961454291438 ~1983
206497141299437 ~1980
206510341302077 ~1980
2065157495637698 ~1983
206516341303277 ~1980
206552341310477 ~1980
2065577123934638 ~1982
20657292478874819 ~1985
206579941315997 ~1980
2065841165267298 ~1982
206599141319837 ~1980
2065997123959838 ~1982
2066017330562738 ~1983
2066033123961998 ~1982
2066069165285538 ~1982
2066081123964878 ~1982
2066081165286498
2066173495881538 ~1983
Exp. Prime Factor Digits Year
2066177159922099910 ~1987
2066201619860318 ~1983
206621941324397 ~1980
2066437330629938 ~1983
2066759372016638 ~1983
2066761124005678 ~1982
2066887206688718 ~1982
206690341338077 ~1980
20670072852469679 ~1985
2067041165363298 ~1982
2067187496124898 ~1983
20672092108553199 ~1985
20672111860489919 ~1984
2067431165394498 ~1982
2067647372176478 ~1983
2067679206767918 ~1982
2067851372213198 ~1983
2067853124071198 ~1982
2067883206788318 ~1982
20678834466627299
2067929289510078 ~1982
2067937124076238 ~1982
206815141363037 ~1980
2068399206839918 ~1982
2068477124108638 ~1982
Exp. Prime Factor Digits Year
206849941369997 ~1980
2068553124113198 ~1982
206876341375277 ~1980
2068817124129038 ~1982
2068939703439278 ~1983
2068991372418398 ~1983
2069017993128178 ~1984
2069113124146798 ~1982
2069329455252398 ~1983
206935141387037 ~1980
206953141390637 ~1980
20696293932295119 ~1985
2069707206970718 ~1982
20697138403034799 ~1986
20698271324689299 ~1984
2069987165598978 ~1982
2069989993594738 ~1984
206999941399997 ~1980
2069999165599938
2070091372616398 ~1983
207014341402877 ~1980
2070581124234878 ~1982
207061141412237 ~1980
2070737165658978 ~1982
2070737289903198
407
GIMPS The Prime Pages FactorDb.com
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26-07-05