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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
18492059369841198 ~1988
184928997767017599 ~1991
18493259369865198 ~1988
18493379369867598 ~1988
18493751147950008110 ~1992
18493823369876478 ~1988
18493991369879838 ~1988
18494123369882478 ~1988
18494279369885598 ~1988
184945032959120499 ~1990
18494519369890398 ~1988
18494891369897838 ~1988
18495539369910798 ~1988
18495563369911278 ~1988
18496199369923998 ~1988
18496223369924478 ~1988
184964091479712739 ~1989
184967411109804479 ~1989
184972011109832079 ~1989
18497639369952798 ~1988
184976931109861599 ~1989
18497711369954238 ~1988
18497723369954478 ~1988
184978615919315539 ~1991
18497879369957598 ~1988
Exponent Prime Factor Digits Year
18498671369973438 ~1988
18499031369980638 ~1988
18499619369992398 ~1988
18500039370000798 ~1988
18500711370014238 ~1988
185011991110071940111 ~1994
185015334440367939 ~1990
185023015920736339 ~1991
185024811110148879 ~1989
185025734070566079 ~1990
185027211110163279 ~1989
18502871370057438 ~1988
18503003370060078 ~1988
18503183370063678 ~1988
185033771110202639 ~1989
185037134070816879 ~1990
185038391850383919 ~1989
18503951370079038 ~1988
185041374440992899 ~1990
185044571110267439 ~1989
18504611370092238 ~1988
18504851370097038 ~1988
18506459370129198 ~1988
18506483370129678 ~1988
18506903370138078 ~1988
Exponent Prime Factor Digits Year
18506951370139038 ~1988
185069771110418639 ~1989
185072411110434479 ~1989
18507623370152478 ~1988
185077397773250399 ~1991
18508943370178878 ~1988
18509663370193278 ~1988
185097611110585679 ~1989
185103411110620479 ~1989
185104611110627679 ~1989
185106411110638479 ~1989
18511271370225438 ~1988
18511511370230238 ~1988
18511763370235278 ~1988
18511943370238878 ~1988
185120511480964099 ~1989
18512111370242238 ~1988
18512519370250398 ~1988
185127131110762799 ~1989
18512891370257838 ~1988
18513623370272478 ~1988
18513983370279678 ~1988
185142011110852079 ~1989
18514823370296478 ~1988
185154171110925039 ~1989
Exponent Prime Factor Digits Year
18515459370309198 ~1988
185157972962527539 ~1990
185158132592213839 ~1990
18515831370316638 ~1988
18516131370322638 ~1988
18516479370329598 ~1988
18516623370332478 ~1988
18517151370343038 ~1988
18517211370344238 ~1988
18517379370347598 ~1988
18517451370349038 ~1988
18517883370357678 ~1988
18518099370361998 ~1988
18518459370369198 ~1988
18519251370385038 ~1988
18519311370386238 ~1988
18519323370386478 ~1988
185200971481607779 ~1989
18520343370406878 ~1988
185207931111247599 ~1989
18521579370431598 ~1988
18522011370440238 ~1988
185221731111330399 ~1989
18522191370443838 ~1988
18522431370448638 ~1988
1361
GIMPS The Prime Pages FactorDb.com
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25-04-13