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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 numbers 6*1280+1, 12*1280+1, and 18*1280+1 are all prime. Hence their product is 2718439856641 which is the smallest Carmichael number that uses all of the first nine digits. [Patterson]

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

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