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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
1216692299243338459910 ~2002
1216703879243340775910 ~2002
1216708523243341704710 ~2002
1216750211243350042310 ~2002
1216752541730051524710 ~2003
12167905736814027208911 ~2006
1216803743243360748710 ~2002
1216875323243375064710 ~2002
1216905929973524743310 ~2003
1216975439243395087910 ~2002
1216986779243397355910 ~2002
1217023583243404716710 ~2002
1217032079243406415910 ~2002
1217078363243415672710 ~2002
1217098193730258915910 ~2003
1217099783243419956710 ~2002
1217114603243422920710 ~2002
1217149421730289652710 ~2003
1217185523243437104710 ~2002
1217211251243442250310 ~2002
1217220083243444016710 ~2002
1217272163243454432710 ~2002
1217276717730366030310 ~2003
12173112195112707119911 ~2005
1217349851243469970310 ~2002
Exponent Prime Factor Digits Year
1217364191243472838310 ~2002
1217368499243473699910 ~2002
1217373539973898831310 ~2003
12173744535599922483911 ~2005
1217384699243476939910 ~2002
1217417291243483458310 ~2002
1217469041730481424710 ~2003
1217495159243499031910 ~2002
1217536499243507299910 ~2002
1217556383243511276710 ~2002
1217563211974050568910 ~2003
1217579243243515848710 ~2002
1217586791243517358310 ~2002
1217605283243521056710 ~2002
1217640923243528184710 ~2002
1217736083243547216710 ~2002
1217811011243562202310 ~2002
1217815019243563003910 ~2002
1217830331243566066310 ~2002
12178765214871506084111 ~2005
121790231913884086436712 ~2006
1217927363243585472710 ~2002
1217942639243588527910 ~2002
1217944499243588899910 ~2002
1217984903243596980710 ~2002
Exponent Prime Factor Digits Year
12180013316820807453711 ~2006
12180026231218002623111 ~2004
1218019091243603818310 ~2002
1218022691243604538310 ~2002
1218039503243607900710 ~2002
1218086423243617284710 ~2002
1218090737974472589710 ~2003
12182026632923686391311 ~2005
1218382751974706200910 ~2003
1218393419243678683910 ~2002
1218434963243686992710 ~2002
1218455717731073430310 ~2003
1218566033731139619910 ~2003
1218578723243715744710 ~2002
1218612911243722582310 ~2002
1218623579243724715910 ~2002
1218644879243728975910 ~2002
1218679439243735887910 ~2002
1218796919243759383910 ~2002
1218815033731289019910 ~2003
1218815579243763115910 ~2002
1218826463243765292710 ~2002
1218848531243769706310 ~2002
1218881519975105215310 ~2003
1218931979243786395910 ~2002
Exponent Prime Factor Digits Year
1218996731243799346310 ~2002
1219057643243811528710 ~2002
1219070591243814118310 ~2002
1219078391243815678310 ~2002
12190869915120165362311 ~2005
1219175183243835036710 ~2002
1219185239243837047910 ~2002
1219200971243840194310 ~2002
1219298831243859766310 ~2002
1219321871243864374310 ~2002
1219324283243864856710 ~2002
12193522572926445416911 ~2005
1219355363243871072710 ~2002
1219355699243871139910 ~2002
1219381571243876314310 ~2002
12193996031951039364911 ~2004
1219442579243888515910 ~2002
1219451351243890270310 ~2002
1219463603243892720710 ~2002
1219484879243896975910 ~2002
1219557533731734519910 ~2003
1219566217731739730310 ~2003
1219583831243916766310 ~2002
1219610033731766019910 ~2003
12196128712195303167911 ~2004
3645
GIMPS The Prime Pages FactorDb.com
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25-07-08