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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
1249013399684178 ~1982
124904324980877 ~1979
124904999923937 ~1980
1249057499622818 ~1982
124909124981837 ~1979
124921774953037 ~1980
12492478919623599 ~1985
124927374956397 ~1980
124931999945537 ~1980
12493191499182819
1249321274850638 ~1981
124951124990237 ~1979
1249531124953118 ~1980
124963199970497 ~1980
124969124993837 ~1979
124973999979137 ~1980
124979924995997 ~1979
124979999983937
124981774989037 ~1980
124984799987777 ~1980
12498471224850079
125002175001277 ~1980
1250023125002318 ~1980
1250351100028098 ~1980
1250831100066498 ~1980
Exp. Prime Factor Digits Year
1250867100069378 ~1980
1251109500443618 ~1982
125117925023597 ~1979
1251179400377298
1251259425428078 ~1982
1251323325343998 ~1981
125158175094877 ~1980
125185125037037 ~1979
1251871525785838 ~1982
125195375117197 ~1980
1252037175285198 ~1981
1252079225374238 ~1981
1252201200352178 ~1981
1252247601078578 ~1982
12522471227202079
125225925045197 ~1979
1252267200362738 ~1981
125234325046877 ~1979
1252343325609198
125240325048077 ~1979
1252411125241118 ~1980
1252421375726318 ~1981
1252451100196098 ~1980
1252457100196578 ~1980
1252469475938238 ~1982
Exp. Prime Factor Digits Year
1252609375782718 ~1981
125263125052637 ~1979
1252631325684078
1252819225507438 ~1981
1252843125284318 ~1980
125291375174797 ~1980
1252913400932178
125299125059837 ~1979
1252991526256238
1253047125304718 ~1980
12530895187788479 ~1984
125309925061997 ~1979
125311125062237 ~1979
125333375199997 ~1980
1253479802226578 ~1982
1253519100281538 ~1980
125378325075677 ~1979
1253897978039678 ~1982
125395125079037 ~1979
125396325079277 ~1979
125402325080477 ~1979
1254161476581198 ~1982
1254251100340098 ~1980
12542571580363839 ~1983
1254301602064498 ~1982
Exp. Prime Factor Digits Year
1254317100345378 ~1980
1254367225786078 ~1981
125437125087437 ~1979
1254479100358338 ~1980
1254497175629598 ~1981
1254497376349118
1254557100364578 ~1980
1254607828040638 ~1982
1254683928465438 ~1982
1254733903407778 ~1982
125483925096797 ~1979
125513925102797 ~1979
1255187100414978 ~1980
125523775314237 ~1980
125530175318077 ~1980
125535775321437 ~1980
125542175325277 ~1980
125545125109037 ~1979
12555671732682479 ~1983
1255601376680318 ~1981
1255601477128398
1255619100449538 ~1980
125572175343277 ~1980
1255861376758318 ~1981
1255907226063278 ~1981
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25-04-13