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

Known
Factors
Exponent
Count
113
106
938
8236
71,642
612,968
584,106
4459,825
Exponent # Known Factors Sum Bitsize of Known Factors Largest factor (bits)% Known PrimeNetGPU72actual
M9914537.24421.3154.2117053481%240 243
M1,0934521.48404.1647.7107959744%240 243

M9475572.20344.2560.4222808870%240 243
M1,1515689.95341.8959.9433536056%240 243

M8634408.12320.4647.2910776362%240 243

M1,0097626.34294.0462.0749256690%240 243

M8534415.13263.3248.6670574443%240 243

M8275520.84262.8562.9790810157%240 243

M1,0194452.31249.3344.3879293425%240 243
M8874431.93240.1548.6952649380%240 243
M1,1814456.86240.0338.6839119390%240 243

M8775523.47235.7359.6883694413%240 243
M6415380.62228.7959.3783151326%240 243

M7614361.29227.3847.4762155059%240 243

M1,1875510.85206.5843.0367312553%240 243

M8214337.26203.9841.0785627284%240 243

M9775410.55203.8942.0213920164%240 243
M1,2015363.44202.5330.2610324729%240 243

M1,0877653.24200.7360.0957681693%240 243

M9294420.86199.6045.3020452099%240 243

M9535438.93197.0746.0580272823%240 243

M9374428.67194.8945.7495197439%240 243
M1,2294286.48182.6423.3098454028%240 243

M7976517.29180.9264.9040150565%240 243
M1,4896512.26176.0034.4030221625%240 243

M6774354.56175.1652.3723781388%240 243

M2,0395385.50173.1118.9063756744%240 243
M7735472.97171.0561.1861578266%240 243
M1,3735304.63166.6022.1870356883%240 243

M1,7214293.40163.1617.0479953515%240 243

M2,2435665.44162.1929.6672759697%240 243

M2,7114346.01162.0412.7632239026%240 243

M7436404.87161.7754.4909825034%240 243
M2,3396432.75160.7118.5016673792%240 243

M1,0214250.80160.3524.5636630754%240 243

M2,0876499.48159.6523.9328701485%240 243

M1,6014391.42158.8424.4481574016%240 243
M2,6174244.66158.239.3487963317%240 243

M4,9575352.25157.447.1060923946%240 243

M1,0334335.59156.8432.4870280736%240 243
M1,3214209.02153.4415.8224829674%240 243
M2,1414250.76152.9711.7120971509%240 243

M1,4816448.43152.5530.2790006752%240 243

M1,5235358.03151.5723.5082731451%240 243

M3,7678423.82151.5611.2507300239%240 243

M3,9116475.57151.4212.1597545385%240 243

M2,5794308.58149.9511.9651803024%240 243

M77,6595412.05149.010.5305940071%240 243

M33,7674268.30148.870.7945479314%240 243

M1,0915359.65148.4832.9654445463%240 243
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