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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
4399061263943678 ~1984
4399061351924898
4399067351925378 ~1984
439951187990237 ~1983
43995131055883139 ~1985
4399573263974398 ~1984
4399673615954238 ~1985
439994387998877 ~1983
4400041264002478 ~1984
4400069352005538 ~1984
44001832464102499 ~1986
44002031496069039 ~1986
4400351352028098 ~1984
4400717264043038 ~1984
4400731440073118 ~1985
440077188015437 ~1983
44009175985247139 ~1987
44011072464619939 ~1986
440119188023837 ~1983
4401233264073998 ~1984
4401281264076878 ~1984
44014971320449119 ~1986
4401653264099198 ~1984
440189988037997 ~1983
4401979440197918 ~1985
Exp. Prime Factor Digits Year
440198388039677 ~1983
4401989616278478 ~1985
44022411320672319 ~1986
440228388045677 ~1983
4402381264142878 ~1984
440267988053597 ~1983
4403053704488498 ~1985
4403213264192798 ~1984
440321988064397 ~1983
440327988065597 ~1983
440329188065837 ~1983
4403537264212238 ~1984
4403753616525438 ~1985
440378388075677 ~1983
440393988078797 ~1983
4403939352315138
4404137352330978 ~1984
4404593616643038 ~1985
4404677264280638 ~1984
44047091321412719 ~1986
4404811440481118 ~1985
4404931440493118 ~1985
4405021264301278 ~1984
440534388106877 ~1983
440540388108077 ~1983
Exp. Prime Factor Digits Year
440567988113597 ~1983
4405697393869311910 ~1989
44057172819658899 ~1987
4405867440586718 ~1985
440587188117437 ~1983
44060213172335139 ~1987
440615988123197 ~1983
4406323440632318 ~1985
44063511145651279 ~1986
44063591850670799 ~1986
44066531321995919 ~1986
440681988136397 ~1983
440693988138797 ~1983
4406953264417198 ~1984
4407269617017678 ~1985
440732388146477 ~1983
440767188153437 ~1983
4407719352617538 ~1984
44077192203859519
4407761352620898 ~1984
4407967440796718 ~1985
440803188160637 ~1983
4408301352664098 ~1984
4408307352664578 ~1984
44083371058000899 ~1986
Exp. Prime Factor Digits Year
4408577617200798 ~1985
44085971058063299 ~1986
44085971322579119
440864388172877 ~1983
4408757352700578 ~1984
4408759440875918 ~1985
4408837264530238 ~1984
4408951440895118 ~1985
4408961352716898 ~1984
4408973264538398 ~1984
4409291352743298 ~1984
44092995732088719 ~1987
4409609617345278 ~1985
4409633264577998 ~1984
4409633617348638
440965188193037 ~1983
4409921264595278 ~1984
4410061264603678 ~1984
4410101352808098 ~1984
4410283441028318 ~1985
4410347793862478 ~1985
441044388208877 ~1983
441055188211037 ~1983
441061188212237 ~1983
441068388213677 ~1983
629
GIMPS The Prime Pages FactorDb.com
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25-05-04