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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
4189417670306738 ~1985
4189477452463516110 ~1989
418958383791677 ~1983
41896512011032499 ~1986
4189771418977118 ~1984
4189793251387598 ~1984
4189807670369138 ~1985
4189847754172478 ~1985
41900593687251939 ~1987
4190107670417138 ~1985
419018383803677 ~1983
41905339051551299 ~1988
4190701670512178 ~1985
4190777335262178 ~1984
4190969586735678 ~1985
41909691341110099
4191043419104318 ~1984
4191157251469438 ~1984
419117983823597 ~1983
4191193251471598 ~1984
41912271005894499 ~1985
4191259754426638 ~1985
419131183826237 ~1983
41913531005924739 ~1985
4191373251482398 ~1984
Exp. Prime Factor Digits Year
4191491335319298 ~1984
41918292263587679 ~1986
41918298719004339
4191991670718578 ~1985
4192169586903678 ~1985
419227183845437 ~1983
4192277335382178 ~1984
419234383846877 ~1983
4192637335410978 ~1984
419294383858877 ~1983
4192997587019598 ~1985
4193191754774398 ~1985
4193251670920178 ~1985
419341183868237 ~1983
4193507754831278 ~1985
4193513251610798 ~1984
419353183870637 ~1983
4193789335503138 ~1984
4193789587130478
4193909587147278 ~1985
419393983878797 ~1983
419414383882877 ~1983
4194167335533378 ~1984
4194217671074738 ~1985
4194277251656638 ~1984
Exp. Prime Factor Digits Year
4194389587214478 ~1985
4194857335588578 ~1984
419486383897277 ~1983
4194907419490718 ~1984
4195063419506318 ~1984
41951291006830979 ~1985
4195249922954798 ~1985
419546383909277 ~1983
4195501251730078 ~1984
419587183917437 ~1983
419588383917677 ~1983
4196011755281998 ~1985
41962671091029439 ~1985
419630383926077 ~1983
41963891678555619 ~1986
4196407419640718 ~1984
4196567335725378 ~1984
4196581251794878 ~1984
4196747335739778 ~1984
4196939335755138 ~1984
419699983939997 ~1983
4197133251827998 ~1984
4197337251840238 ~1984
41973671007368099 ~1985
419744383948877 ~1983
Exp. Prime Factor Digits Year
4197541251852478 ~1984
4197577671612338 ~1985
41976671007440099 ~1985
419792383958477 ~1983
4198111419811118 ~1984
419831983966397 ~1983
4198433587780638 ~1985
419851183970237 ~1983
4198549923680798 ~1985
41985493274868239
4198927671828338 ~1985
4198937335914978 ~1984
4198963671834098 ~1985
4199177251950638 ~1984
4199177587884798
4199231335938498 ~1984
419948383989677 ~1983
4199557251973438 ~1984
41995674115575679 ~1987
419971183994237 ~1983
4199803671968498 ~1985
41998911763954239 ~1986
419996383999277 ~1983
420002384000477 ~1983
4200167756030078 ~1985
625
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25-10-26