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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
228366371370198239 ~1990
22836743456734878 ~1988
228368391826947139 ~1990
22838411456768238 ~1988
228386119135444419 ~1992
228386875481284899 ~1991
22838771456775438 ~1988
22839059456781198 ~1988
228390591827124739
22839191456783838 ~1988
228399971370399839 ~1990
22840019456800398 ~1988
22840043456800878 ~1988
22840283456805678 ~1988
22840739456814798 ~1988
228409495481827779 ~1991
22841111456822238 ~1988
228412611370475679 ~1990
22841519456830398 ~1988
22841711456834238 ~1988
22841723456834478 ~1988
22841963456839278 ~1988
22842119456842398 ~1988
22842359456847198 ~1988
22842383456847678 ~1988
Exponent Prime Factor Digits Year
22842563456851278 ~1988
228425832284258319 ~1990
228428816852864319 ~1991
22842899456857998 ~1988
228433971370603839 ~1990
228439394111909039 ~1991
228440771370644639 ~1990
22844579456891598 ~1988
22844879456897598 ~1988
22845071456901438 ~1988
22845743456914878 ~1988
228459371370756239 ~1990
228461411370768479 ~1990
22846619456932398 ~1988
22847411456948238 ~1988
228478931370873599 ~1990
22847963456959278 ~1988
22848011456960238 ~1988
22848359456967198 ~1988
22848719456974398 ~1988
22849163456983278 ~1988
22849199456983998 ~1988
22849643456992878 ~1988
22849679456993598 ~1988
22849763456995278 ~1988
Exponent Prime Factor Digits Year
228502571371015439 ~1990
228505911828047299 ~1990
22850843457016878 ~1988
22850963457019278 ~1988
22851011457020238 ~1988
22852163457043278 ~1988
22852201324501254310 ~1993
22852283457045678 ~1988
22852331457046638 ~1988
22853483457069678 ~1988
22854599457091998 ~1988
22854731457094638 ~1988
22854959457099198 ~1988
22855139457102798 ~1988
228553731371322399 ~1990
228558731371352399 ~1990
22856699457133998 ~1988
22857119457142398 ~1988
22857203457144078 ~1988
228572211828577699 ~1990
22857683457153678 ~1988
228577618685949199 ~1992
22858019457160398 ~1988
22858151457163038 ~1988
22858679457173598 ~1988
Exponent Prime Factor Digits Year
22858763457175278 ~1988
228589215028962639 ~1991
22858991457179838 ~1988
228591192285911919 ~1990
22859411457188238 ~1988
22859471457189438 ~1988
228599712285997119 ~1990
22860203457204078 ~1988
22860419457208398 ~1988
22860791457215838 ~1988
228614571371687439 ~1990
22861463457229278 ~1988
22861511457230238 ~1988
228617811371706879 ~1990
228628571371771439 ~1990
22863371457267438 ~1988
22863839457276798 ~1988
228638871829110979 ~1990
228642133658274099 ~1991
22864739457294798 ~1988
22865831457316638 ~1988
22866323457326478 ~1988
22866719457334398 ~1988
22866743457334878 ~1988
22867139457342798 ~1988
1574
GIMPS The Prime Pages FactorDb.com
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25-12-07