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(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ The only 3-digit number n in which 2n - n is prime. [Wu]

+ In the novel Contact by Carl Sagan, Dr. Arroway asks Mr. Kitz, "You wanted to keep the first 261 prime numbers secret?"

(There is one curio for this number that has not yet been approved by an editor.)

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