The book is now available! 413
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ Although 413 is a semiprime, (413 - 4)^4 + (413 - 1)^1 + (413 - 3)^3 is prime with prime length and a perfect number of prime digits. [Patterson]

+ At 413, the number of composite numbers ending with a 3 finally catches up to the number of primes ending with a 3 at 21 each after falling behind by as much as 9 to 3 at n = 113. [Gaydos]




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