Prime Curios!: 443

443
(another Prime Pages' Curiosity)

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The first three-digit non-palindromic prime number whose binary equivalent (110111011) is a palindromic prime in base ten. [Hoffman]

443 is the 24th (half of 4 * 4 * 3) Sophie Germain prime, since 443*2+1 = 887 which is also is prime (and 8 + 8 + 7 is the successor to 24). [Carmichael]

In the Annals of Mathematics 141, Andrew Wiles' monumental paper "Modular elliptic curves and Fermat's Last Theorem" begins at the prime number page 443. It is from 443 to 551. [Poo Sung]

To link to this page use http://primes.utm.edu/curios/page.php?number_id=247