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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
1248261299249652259910 ~2002
1248273179249654635910 ~2002
1248304649998643719310 ~2004
1248326699249665339910 ~2002
1248363299249672659910 ~2002
1248375119249675023910 ~2002
1248396557749037934310 ~2003
1248402641998722112910 ~2004
1248441731998753384910 ~2004
1248485999249697199910 ~2002
1248492737998794189710 ~2004
1248505859249701171910 ~2002
1248546263249709252710 ~2002
1248550223249710044710 ~2002
1248663341998930672910 ~2004
1248750311249750062310 ~2002
1248760511249752102310 ~2002
12488344031248834403111 ~2004
1248841019249768203910 ~2002
1248852431249770486310 ~2002
12489493673247268354311 ~2005
12490267632997664231311 ~2005
1249042211999233768910 ~2004
1249060511249812102310 ~2002
1249072091249814418310 ~2002
Exponent Prime Factor Digits Year
1249148171999318536910 ~2004
1249156043249831208710 ~2002
1249176077749505646310 ~2003
12492058436246029215111 ~2005
1249213583249842716710 ~2002
1249313771249862754310 ~2002
1249357511999486008910 ~2004
1249365893749619535910 ~2003
12493783916996518989711 ~2006
12494017631249401763111 ~2004
1249435703249887140710 ~2002
1249542869999634295310 ~2004
1249550531249910106310 ~2002
1249561559249912311910 ~2002
1249627031249925406310 ~2002
1249663973749798383910 ~2003
1249671653749802991910 ~2003
1249677371999741896910 ~2004
1249685891249937178310 ~2002
1249731971249946394310 ~2002
1249776611249955322310 ~2002
1249782461749869476710 ~2003
1249788803249957760710 ~2002
1249791863249958372710 ~2002
1249811399249962279910 ~2002
Exponent Prime Factor Digits Year
1249825691249965138310 ~2002
1249834931249966986310 ~2002
1249839179249967835910 ~2002
1249873343249974668710 ~2002
1249877903249975580710 ~2002
1249949999249989999910 ~2002
1249967363249993472710 ~2002
1249977611249995522310 ~2002
12500222511000017800911 ~2004
1250029871250005974310 ~2002
12500385071250038507111 ~2004
1250065259250013051910 ~2002
1250085503250017100710 ~2002
1250099531250019906310 ~2002
1250199803250039960710 ~2002
12502111871250211187111 ~2004
1250215451250043090310 ~2002
12502222573750666771111 ~2005
12502923432000467748911 ~2004
12503565591000285247311 ~2004
1250370851250074170310 ~2002
1250375459250075091910 ~2002
1250384279250076855910 ~2002
1250424863250084972710 ~2002
1250524991250104998310 ~2002
Exponent Prime Factor Digits Year
1250584823250116964710 ~2002
1250599859250119971910 ~2002
1250685701750411420710 ~2003
12506864391000549151311 ~2004
1250705831250141166310 ~2002
1250724071250144814310 ~2002
1250765651250153130310 ~2002
1250766481750459888710 ~2003
1250786921750472152710 ~2003
1250833271250166654310 ~2002
1250885591250177118310 ~2002
12509057511000724600911 ~2004
1250930273750558163910 ~2003
1250933543250186708710 ~2002
1250934719250186943910 ~2002
1250938103250187620710 ~2002
1250974721750584832710 ~2003
1250983319250196663910 ~2002
12509966235254185816711 ~2005
1251026537750615922310 ~2003
12510290811000823264911 ~2004
1251044243250208848710 ~2002
1251057383250211476710 ~2002
1251190883250238176710 ~2002
1251307391250261478310 ~2002
3620
GIMPS The Prime Pages FactorDb.com
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25-06-08