# 787

This number is a prime. The six integers following 787 are divisible by the first six primes, respectively. The smallest prime that can be represented as sum of a prime and its reversal in two different ways. [Gupta] The Great Mogul Diamond of India was at least 787 carats. The sum of the first eleven emirps. [Silva] The Boeing 787 Dreamliner is a super-efficient airplane. Half of its "primary" structure is made of composite materials. The smallest multidigit (or non-trivial) Giza prime. [Pol] The smallest palindromic prime p such that neither p+2, p-2, p+4, p-4, p+6, p-6, p+8, nor p-8 is prime. [Post] The Boeing Company's newest commercial aircraft, the 787 Dreamliner, completed its maiden flight in Seattle, WA on 12/15/2009. Note that 12152009 is also prime. [Green] The smallest prime number (the only palindromic) of the form a^m+b^m-m where a*b is the prime factorization of m, i.e., 2^6+3^6-6. [Loungrides] Kaczynski, T, J. (1971). "Problem 787". Mathematics Magazine 44 (1): 41. 787 = 3⁴ + 5⁴ + 3⁴. Note that 787 and 353 are both palindromic primes. [Leonardis] The first palindromic prime sum of the first (palindromic) n "happy primes" {7,13,19,23,31,79,97,103,109,139,167}, (case n=11). [Worrom]

(There are 17 curios for this number that have not yet been approved by an editor.)