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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) 4920 is the smallest number that may be expressed as the difference between the squares of consecutive primes in four different ways (1231^{2}  1229^{2} = 617^{2}  613^{2} = 251^{2}  241^{2} = 211^{2}  199^{2}). [King]
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