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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
1861889446853378
18618971005424399 ~1983
1861921409622638 ~1982
18620172346141439 ~1984
1862033111721998 ~1981
186211137242237 ~1980
1862111484148878
186221937244397 ~1980
1862219335199438
186227937245597 ~1980
1862297111737838 ~1981
186241137248237 ~1980
1862519149001538 ~1981
1862687335283678 ~1982
1862687447044898
18626873613612799
186289137257837 ~1980
1862923186292318 ~1982
1863089707973838 ~1983
1863097298095538 ~1982
1863307894387378 ~1983
186337137267437 ~1980
1863403633557038 ~1983
1863413111804798 ~1981
1863461559038318 ~1983
Exp. Prime Factor Digits Year
1863473111808398 ~1981
1863481298156978 ~1982
1863517111811038 ~1981
1863593447262338 ~1983
186373137274637 ~1980
1863779335480238 ~1982
1863811186381118 ~1982
1863853410047678 ~1982
1863913111834798 ~1981
186392337278477 ~1980
1863971149117698 ~1981
186415137283037 ~1980
1864253260995438 ~1982
1864391149151298 ~1981
1864517149161378 ~1981
1864559783114798 ~1983
1864567298330738 ~1982
1864601111876078 ~1981
1864649149171938 ~1981
1864871335676798 ~1982
186497937299597 ~1980
1865011186501118 ~1982
1865023186502318 ~1982
1865069149205538 ~1981
1865081130928686310 ~1986
Exp. Prime Factor Digits Year
1865147335726478 ~1982
186515937303197 ~1980
1865161298425778 ~1982
1865263186526318 ~1982
186539937307997 ~1980
1865399335771838
186541137308237 ~1980
1865527186552718 ~1982
186560337312077 ~1980
1865609149248738 ~1981
1865687149254978 ~1981
1865863186586318 ~1982
1865881410493838 ~1982
1865893298542898 ~1982
186608337321677 ~1980
1866131149290498 ~1981
186619137323837 ~1980
18662111343671939 ~1984
186623937324797 ~1980
1866239447897378
1866281111976878 ~1981
1866451335961198 ~1982
1866517111991038 ~1981
1866517858597838
1866721112003278 ~1981
Exp. Prime Factor Digits Year
1866751186675118 ~1982
1866827149346178 ~1981
1866961410731438 ~1982
1866989149359138 ~1981
1867079149366338 ~1981
1867253112035198 ~1981
186725937345197 ~1980
1867321298771378 ~1982
1867321560196318
1867373261432238 ~1982
1868051784581438 ~1983
18681492241778819 ~1984
1868179186817918 ~1982
186818337363677 ~1980
1868257448381698 ~1983
1868371336306798 ~1982
1868381896822898 ~1983
1868501710030398 ~1983
186851937370397 ~1980
186859137371837 ~1980
1868599186859918 ~1982
1868641747456418 ~1983
1868663107634988910 ~1986
1868687149494978 ~1981
1868687485858638
365
GIMPS The Prime Pages FactorDb.com
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25-04-13