Mersenne numbers with P-1 factors found via Brent-Suyama extension:
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Actual Bounds
(Brent-Suyama)
Minimum Required
(no Brent-Suyama ext.)
Required / Actual
Exponent Date B1 B2 e B1 B2 B1B2
M74,221,0392015-06-21735,00016,537,500123,948,1693,948,169537%24%
M1,584,1572015-04-1310,000,000200,000,000129,442,72924,265,355,70194%12,133%
M1,670,8192018-06-111,670,819167,081,900121,559,093188,395,57393%113%
M2,471,0932019-04-116,000,000180,000,000125,310,967280,122,21189%156%
M71,877,9592014-08-10665,00013,965,00012579,90721,760,30987%156%
M3,159,9732019-06-283,000,000100,000,000122,554,843313,492,56185%313%
M71,220,3532015-01-04660,00013,365,00012558,79133,483,57785%251%
M38,548,3512016-05-25400,00012,000,00012326,58118,280,42982%152%
M86,938,2732018-06-24705,00013,923,75012558,661248,308,44179%1,783%
M711,3172014-10-03500,00015,000,00012390,00122,527,18178%150%
M785,7772014-10-03500,00015,000,00012385,26729,499,18177%197%
M76,439,0232016-03-13665,00013,300,00012508,867393,830,71377%2,961%
M85,086,2472017-12-21680,00013,430,00012507,88317,018,06975%127%
M87,011,5012018-04-17705,00013,923,75012464,46733,671,32166%242%
M1,899,3012018-02-101,899,30156,045,360121,243,631230,901,90165%412%
M52,981,7832018-09-011,000,00020,000,0006636,69763,420,67364%317%
M108,7392016-12-03100,000,0002,000,000,0001261,641,42135,231,731,78962%1,762%
M615,2892014-10-171,000,00030,000,00012595,277123,426,48160%411%
M88,296,9472018-07-27725,00014,318,75012429,59917,764,27759%124%
M78,403,9812016-07-03660,00013,200,00012385,29126,033,88158%197%
M84,574,6872017-11-26675,00013,331,25012381,54119,500,72157%146%
M6,187,4272019-09-06600,00012,000,00012318,97913,100,62953%109%
M72,621,3172015-09-03980,00021,315,00012484,36123,379,15149%110%
M163,0212017-04-23100,000,0002,000,000,0001248,099,25111,463,273,84148%573%
M287,3932016-11-075,000,00040,000,000121,994,05954,004,36940%135%
M440,2272014-11-213,000,000100,000,000121,100,009163,285,00937%163%
M1,951,4932018-01-201,951,49330,000,00012710,6272,915,830,78936%9,719%
M77,579,1532016-05-08660,00013,035,00012236,65913,638,22336%105%
M2,070,7812018-03-126,000,000200,000,000122,111,969282,062,62935%141%
M1,758,9472018-10-191,758,947193,484,17012580,693247,145,02133%128%
M34,581,1932015-02-13500,0009,000,00012149,0119,052,50730%101%
M15,806,2132016-01-16300,0006,000,0001287,4036,136,62129%102%
M2,107,0132017-07-112,500,000125,000,00012694,409329,296,75328%263%
M94,815,7372019-08-30825,00017,531,2506210,25760,494,49125%345%
M95,405,1792019-09-01935,00022,673,7506225,35324,708,36724%109%
M86,561,1132018-06-14700,00013,825,00012167,63318,242,43724%132%
M58,814,2792017-10-17980,23719,604,75912163,8114,163,579,47717%21,238%
M74,149,6392015-07-05645,00012,900,00012104,23122,969,74716%178%
M2,306,5192017-12-216,000,000180,000,00012960,077184,216,69316%102%
M85,145,0172017-12-21680,00013,260,0006107,87313,754,91116%104%
M74,320,3072015-07-19740,00016,650,00012108,289132,656,31115%797%
M79,965,9532016-12-07675,00013,668,7501295,97156,088,96114%410%
M68,692,9132014-10-26625,00012,968,7501276,34313,048,59712%101%
M4,958,5792015-03-271,200,00043,100,00012134,29362,898,84111%146%
M2,530,5972018-11-302,000,00060,000,00012223,339531,545,55711%886%
M73,959,7272015-10-28730,00016,060,000670,79357,759,34310%360%
M12,183,6312016-12-25685,00023,632,5001265,30962,366,67110%264%
M166,1832017-04-25100,000,0002,000,000,000129,370,1592,405,007,4999%120%
M4,396,2192018-12-202,237,73962,656,68112195,659213,759,9619%341%
M89,396,6332018-11-19725,00014,318,7501261,05725,887,6438%181%
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