The book is now available! 1583
(just those submitted by Bajpai)
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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 'Bajpai': (Click here to show all)

+ The smallest emirp that is the sum of first n nontrivial (multidigit) palindromes (11+22+33+...+161+171=1583). [Bajpai]

+ The smallest Sophie Germain prime p such that the digitsum(p); the digitsum(p^2); the digitsum(p^3); all are prime. [Bajpai]

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