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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
188887631888876319 ~1990
18888839377776798 ~1988
188892317933477039 ~1991
188894572644523999 ~1990
18889631377792638 ~1988
188899732644596239 ~1990
188905811133434879 ~1989
18890603377812078 ~1988
188907411133444479 ~1989
188909531133457199 ~1989
188910171511281379 ~1989
18891023377820478 ~1988
18891311377826238 ~1988
18891877120908012910 ~1991
188921211511369699 ~1989
188921411133528479 ~1989
18892199377843998 ~1988
18892259377845198 ~1988
18892343377846878 ~1988
188925613022809779 ~1990
18892739377854798 ~1988
18892799377855998 ~1988
188928011133568079 ~1989
18893219377864398 ~1988
18893711377874238 ~1988
Exponent Prime Factor Digits Year
188943011133658079 ~1989
18894443377888878 ~1988
18894671377893438 ~1988
18895207109592200710 ~1991
18895379377907598 ~1988
18895463377909278 ~1988
188956217558248419 ~1991
18895703377914078 ~1988
18895991377919838 ~1988
18896243377924878 ~1988
18896411377928238 ~1988
18896939377938798 ~1988
18897563377951278 ~1988
188976911889769119 ~1990
18897779377955598 ~1988
18898403377968078 ~1988
18898811377976238 ~1988
18898931377978638 ~1988
188993811511950499 ~1989
18899519377990398 ~1988
188999897559995619 ~1991
18900071378001438 ~1988
18900419378008398 ~1988
189004371134026239 ~1989
189004873024077939 ~1990
Exponent Prime Factor Digits Year
18901079378021598 ~1988
189013491512107939 ~1989
18901391378027838 ~1988
18901439378028798 ~1988
18901511378030238 ~1988
18901763378035278 ~1988
18902531378050638 ~1988
18903323378066478 ~1988
18903491378069838 ~1988
18903971378079438 ~1988
18904111200383576710 ~1992
18904871378097438 ~1988
189049131134294799 ~1989
18905219378104398 ~1988
18905543378110878 ~1988
18906203378124078 ~1988
18906383378127678 ~1988
189065571134393439 ~1989
18907319378146398 ~1988
18907331378146638 ~1988
18907439378148798 ~1988
18907979378159598 ~1988
18908111378162238 ~1988
189081111512648899
18908243378164878 ~1988
Exponent Prime Factor Digits Year
18908303378166078 ~1988
18908399378167998 ~1988
18908579378171598 ~1988
18908663378173278 ~1988
18909239378184798 ~1988
18909311378186238 ~1988
18909623378192478 ~1988
18909743378194878 ~1988
18909791378195838 ~1988
18909983378199678 ~1988
189104211134625279 ~1989
189104871512838979 ~1989
189113811134682879 ~1989
189117433025878899 ~1990
18912059378241198 ~1988
18912119378242398 ~1988
189126171513009379 ~1989
18912779378255598 ~1988
18912851378257038 ~1988
18912983378259678 ~1988
18913403378268078 ~1988
18913991378279838 ~1988
18914111378282238 ~1988
18914459378289198 ~1988
18914543378290878 ~1988
1375
GIMPS The Prime Pages FactorDb.com
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25-04-13