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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
4394035438788070879 ~1999
4394073891406103644911 ~2001
4394083318788166639 ~1999
439419833615187766310 ~2001
4394533318789066639 ~1999
4394588638789177279 ~1999
4394621398789242799 ~1999
4394747518789495039 ~1999
4394759998789519999 ~1999
439476113263685667910 ~2000
4394774038789548079 ~1999
4394815198789630399 ~1999
4395070214482971614311 ~2003
4395169438790338879 ~1999
4395369598790739199 ~1999
4395390118790780239 ~1999
439546621263727972710 ~2000
4395531718791063439 ~1999
4395598918791197839 ~1999
4395779518791559039 ~1999
4395835198791670399 ~1999
439583777263750266310 ~2000
439595161703352257710 ~2001
4395977998791955999 ~1999
4396047238792094479 ~1999
Exponent Prime Factor Digits Year
439611847439611847110 ~2000
4396208998792417999 ~1999
439629389351703511310 ~2000
4396368118792736239 ~1999
4396422718792845439 ~1999
4396744918793489839 ~1999
4396863238793726479 ~1999
439699697263819818310 ~2000
4397018031407045769711 ~2001
4397045638794091279 ~1999
4397069518794139039 ~1999
4397084038794168079 ~1999
4397222038794444079 ~1999
439748789351799031310 ~2000
439748797703598075310 ~2001
439760359439760359110 ~2000
439794967791630940710 ~2001
439795921263877552710 ~2000
4398007198796014399 ~1999
4398158518796317039 ~1999
4398212518796425039 ~1999
439830893263898535910 ~2000
4398401171055616280911 ~2001
4398421318796842639 ~1999
439859653263915791910 ~2000
Exponent Prime Factor Digits Year
4398707038797414079 ~1999
4398956998797913999 ~1999
4399044118798088239 ~1999
439917091439917091110 ~2000
4399332118798664239 ~1999
4399339798798679599 ~1999
4399405198798810399 ~1999
4399633198799266399 ~1999
4399774918799549839 ~1999
4399802398799604799 ~1999
4399940998799881999 ~1999
4400310718800621439 ~1999
440033513264020107910 ~2000
4400398438800796879 ~1999
4400424238800848479 ~1999
440043749352034999310 ~2000
4400470438800940879 ~1999
440049173264029503910 ~2000
4400523118801046239 ~1999
4400526118801052239 ~1999
440053261264031956710 ~2000
440059339440059339110 ~2000
440087147352069717710 ~2000
4400879518801759039 ~1999
440092949352074359310 ~2000
Exponent Prime Factor Digits Year
4401122038802244079 ~1999
4401152398802304799 ~1999
440116289352093031310 ~2000
4401166198802332399 ~1999
440158417264095050310 ~2000
440165113968363248710 ~2001
4401745198803490399 ~1999
4401890038803780079 ~1999
4401924718803849439 ~1999
440194159792349486310 ~2001
440200451352160360910 ~2000
440212147704339435310 ~2001
4402241998804483999 ~1999
440228563440228563110 ~2000
4402296238804592479 ~1999
4402519213169813831311 ~2002
440277419352221935310 ~2000
440288143704461028910 ~2001
440289097264173458310 ~2000
4402935718805871439 ~1999
4403055118806110239 ~1999
440311819440311819110 ~2000
4403434571761373828111 ~2002
440348333264208999910 ~2000
440352197352281757710 ~2000
3410
GIMPS The Prime Pages FactorDb.com
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26-01-11