The book is now available! 86269
(just those submitted by Luhn)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

Just showing those entries submitted by 'Luhn': (Click here to show all)

+ Replace any single digit of 86269 with a 3 and the result is always prime. It is the largest five-digit prime with this property. [Luhn]




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