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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
4255441318510882639 ~1998
4255585198511170399 ~1998
4255633318511266639 ~1998
4255811518511623039 ~1998
4255819798511639599 ~1998
4255877638511755279 ~1998
425612701255367620710 ~2000
4256205238512410479 ~1998
4256208598512417199 ~1998
4256219398512438799 ~1998
4256288038512576079 ~1998
4256380798512761599 ~1998
4256489038512978079 ~1998
4256698798513397599 ~1998
425682307425682307110 ~2000
4257034198514068399 ~1998
425705087340564069710 ~2000
4257226431362312457711 ~2001
425732779425732779110 ~2000
4257401518514803039 ~1998
4257414718514829439 ~1998
4257459238514918479 ~1998
4257644636216161159911 ~2003
425765161255459096710 ~2000
4257740398515480799 ~1998
Exponent Prime Factor Digits Year
4257791998515583999 ~1998
4257889438515778879 ~1998
4258004518516009039 ~1998
4258045918516091839 ~1998
425815393255489235910 ~2000
4258230118516460239 ~1998
4258289518516579039 ~1998
4258351318516702639 ~1998
4258383238516766479 ~1998
4258407718516815439 ~1998
4258482118516964239 ~1998
4258504438517008879 ~1998
425853797255512278310 ~2000
425856637255513982310 ~2000
4258610638517221279 ~1998
425883373255530023910 ~2000
4258970638517941279 ~1998
4258985038517970079 ~1998
4259325718518651439 ~1998
425943733255566239910 ~2000
425960287425960287110 ~2000
425963297255577978310 ~2000
4259640238519280479 ~1998
426004661255602796710 ~2000
4260212631022451031311 ~2001
Exponent Prime Factor Digits Year
4260382198520764399 ~1998
426047429340837943310 ~2000
4260497638520995279 ~1998
4260722038521444079 ~1998
4260940798521881599 ~1998
4261159798522319599 ~1998
4261163038522326079 ~1998
4261337518522675039 ~1998
426136273255681763910 ~2000
4261491672045516001711 ~2002
4261670518523341039 ~1998
4261732438523464879 ~1998
4261966798523933599 ~1998
4261973998523947999 ~1998
4262117398524234799 ~1998
4262136598524273199 ~1998
4262303038524606079 ~1998
426230479426230479110 ~2000
4262324038524648079 ~1998
4262449918524899839 ~1998
426258047341006437710 ~2000
4262753518525507039 ~1998
4262790118525580239 ~1998
4263028798526057599 ~1998
426319079341055263310 ~2000
Exponent Prime Factor Digits Year
426326893682123028910 ~2001
426346093255807655910 ~2000
4263502198527004399 ~1998
4263702718527405439 ~1998
426373553255824131910 ~2000
4264010518528021039 ~1998
426410401255846240710 ~2000
426419933255851959910 ~2000
426426001682281601710 ~2001
4264363318528726639 ~1998
4264482071023475696911 ~2001
426451843426451843110 ~2000
426456001255873600710 ~2000
4264563238529126479 ~1998
4264637998529275999 ~1998
4264676038529352079 ~1998
426470521682352833710 ~2001
4264830598529661199 ~1998
4265060277165301253711 ~2003
426507973255904783910 ~2000
4265187598530375199 ~1998
4265239631023657511311 ~2001
4265287318530574639 ~1998
426533231341226584910 ~2000
4265351398530702799 ~1998
3192
GIMPS The Prime Pages FactorDb.com
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25-07-08