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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) 431729 = prime((4*3*1*7*2*9)*(4+3+1+7+2+9))  (4*3*1*7*2*9) *(4+3+1+7+2+9)). Note that 431729 is the smallest prime with this property. [Firoozbakht]
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