Top Mersenne exponents with the most known factors:
Exponent range: - , number of factors between and

Known
Factors
Exponent
Count
113
106
945
8316
72,493
618,620
5154,268
Exponent # Known FactorsSum Bitsize of Known Factors Largest factor (bits) % Known PrimeNetGPU72actual
M7,508,98111495.9480.000.0066046380%263 267
M9,100,91911521.5180.160.0057302472%264 268
M3,930,621,65911591.0682.340.0000150374%288 292

M566,448,35910450.6764.230.0000795615%279 283
M1,708,426,29710503.6972.860.0000294827%284 288
M2,612,650,69310542.9879.880.0000207828%286 290
M2,621,856,54110516.4078.960.0000196960%286 290
M2,680,080,50310493.9672.070.0000184309%286 290
M3,273,488,57310508.3878.040.0000155302%287 291

M3979397.00102.38100.0000000000%240 244
M31,8179649.29134.152.0406927922%240 244
M111,2699445.0379.650.3999610015%240 244
M150,5519572.26101.240.3801094254%240 244
M457,7399445.7286.890.0973750433%240 244
M599,8039485.15101.230.0808841881%240 244
M757,6519506.5583.830.0668573290%240 244
M794,2039430.5888.320.0542152734%240 244
M1,938,3179444.6383.790.0229392135%258 262
M5,977,7539404.7760.800.0067713173%262 266
M9,325,1599431.0872.400.0046227163%264 268
M27,366,9619414.3078.450.0015138683%266 270
M28,035,7019409.7760.860.0014615905%266 270
M31,866,3779429.3661.160.0013473915%267 271
M60,593,0419417.8065.270.0006895233%269 273
M110,393,0699423.0467.630.0003832142%272 276
M113,644,6739392.8763.840.0003457043%272 276
M160,062,6719427.7968.740.0002672618%274 278
M453,966,7319453.4667.450.0000998878%278 282
M458,703,4379426.0367.500.0000928772%278 282
M630,486,7999388.0556.110.0000615472%280 284
M639,698,2439422.9671.430.0000661191%280 284
M726,064,7639471.7174.850.0000649686%280 284
M736,098,4319444.1476.850.0000603370%280 284
M736,647,0719463.9572.470.0000629816%280 284
M809,682,1219451.7869.390.0000557968%281 285
M894,182,7199550.3575.010.0000615482%281 285
M940,572,4919430.1067.950.0000457275%281 285
M1,253,228,9479479.5670.470.0000382661%283 287
M1,512,382,4939430.7772.940.0000284830%284 288
M1,541,784,5579423.3173.290.0000274556%284 288
M1,689,848,5619435.7977.880.0000257884%284 288
M1,702,917,1039459.9072.900.0000270068%284 288
M1,797,253,0799447.7271.660.0000249115%284 288
M1,956,651,0179447.4066.250.0000228656%285 289
M2,444,875,8839472.3879.570.0000193211%286 290
M2,568,758,3219408.9470.400.0000159197%286 290
M2,578,897,0019462.2677.170.0000179246%286 290
M2,622,903,6839480.2873.430.0000183110%286 290
M2,698,453,8739425.9973.030.0000157863%286 290
M2,877,506,7119434.6477.840.0000151046%286 290
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