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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
25988951519779038 ~1989
259902736237665539 ~1992
259905892079247139 ~1990
259906312079250499 ~1990
25990823519816478 ~1989
25991111519822238 ~1989
259921372079370979 ~1990
25992251519845038 ~1989
25992971519859438 ~1989
25993043519860878 ~1989
25993619519872398 ~1989
25995383519907678 ~1989
259956371559738239 ~1990
25996079519921598 ~1989
25996511519930238 ~1989
25996643519932878 ~1989
259969336239263939 ~1992
25997123519942478 ~1989
25997243519944878 ~1989
25997351519947038 ~1989
25997579519951598 ~1989
25997771519955438 ~1989
259978371559870239 ~1990
259979411559876479 ~1990
25998299519965998 ~1989
Exponent Prime Factor Digits Year
25998503519970078 ~1989
25998611519972238 ~1989
25999067129995335110 ~1992
25999079519981598 ~1989
25999199519983998 ~1989
25999679519993598 ~1989
25999691519993838 ~1989
25999691254796971910
25999751519995038 ~1989
259999335719985279 ~1991
26000003520000078 ~1989
26000099520001998 ~1989
26000231520004638 ~1989
26000291520005838 ~1989
26001263520025278 ~1989
260019611560117679 ~1990
26002199520043998 ~1989
26003291520065838 ~1989
26004479520089598 ~1989
260047618321523539 ~1992
26005691520113838 ~1989
26005799520115998 ~1989
26005943520118878 ~1989
26006531520130638 ~1989
26006759520135198 ~1989
Exponent Prime Factor Digits Year
260071018088208411111 ~1997
26007431520148638 ~1989
26007851520157038 ~1989
26007911520158238 ~1989
260082011560492079 ~1990
26008211520164238 ~1989
26008259520165198 ~1989
260085537802565919 ~1992
26008943520178878 ~1989
26008991520179838 ~1989
26009003520180078 ~1989
26009411520188238 ~1989
260096472600964719 ~1991
26009783520195678 ~1989
26010191520203838 ~1989
26010847358949688710 ~1993
26010923520218478 ~1989
26012219520244398 ~1989
260139171560835039 ~1990
26014931520298638 ~1989
26015069208120552110 ~1993
26015543520310878 ~1989
260158331560949999 ~1990
260159112601591119 ~1991
26016071520321438 ~1989
Exponent Prime Factor Digits Year
26016863520337278 ~1989
26016911520338238 ~1989
260172171561033039 ~1990
260172172081377379
26017391520347838 ~1989
26017619520352398 ~1989
26018123520362478 ~1989
260187172081497379 ~1990
26018939520378798 ~1989
26019011520380238 ~1989
26020079520401598 ~1989
26020283520405678 ~1989
26020979520419598 ~1989
26021111520422238 ~1989
26021423520428478 ~1989
26021591520431838 ~1989
26022719520454398 ~1989
260231571561389439 ~1990
260234331561405999 ~1990
26023703520474078 ~1989
26023799520475998 ~1989
26023919520478398 ~1989
26024123520482478 ~1989
260245612081964899 ~1990
26025179520503598 ~1989
1621
GIMPS The Prime Pages FactorDb.com
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25-06-08