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

+ The smallest odd prime number that produces two triangular numbers (4186 and 3160) when its prime index (513) is subtracted from it or added to it. The next such prime is 2955107. [Gaydos]

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




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