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The smallest "prime year" of the 21st century. The next prime years are 2011, 2017, 2027, 2029, 2039, 2053, 2063, 2069, 2081, 2083, 2087, 2089, and 2099. [Park] The first edition of The Music of Primes by Marcus du Sautoy was published in 2003. [Post] The repunit consisting of 179 'ones' in base 2003 or (2003^1791)/(20031) is prime. [Carmody and Dobb] 200*3 + 1, 20*03 + 1, and 2*003 + 1 are three sets of twin prime pairs. Note that 2003 is the largest prime for which this happens. [Rivera] During a quarter century career as a professional stuntman from 1968 to 1993, Dick Sheppard of Gloucester, England, wrecked a total of 2003 automobiles. [Dobb] Lance Armstrong, in 2003 (at the age of 31), became the 2nd person ever to win the Tour De France 5 times consecutively, beating the runnerup Jan Ullrich by 61 seconds. Note that 2, 5, 31, 61 and 2003 are all prime numbers. [Hartley] The first year of the 21st century is not only prime, but has a prime concatenation of all years from 2000 through itself. I.e., 2000200120022003 is prime. [Post] The only known prime of the form 2*10^p+p, where p and p+4 are primes. [Firoozbakht] 2003 is formed from the first two primes (2 and 3) separated by two 0's. You can get the next two primes by adding 2^{3}, then 2*3. [Merickel] A prime such that the sum of the 13th power of all the primes up to 2003 is another prime number. Found Farideh Firoozbakht in 2003. [Rivera]
(There are 4 curios for this number that have not yet been approved by an editor.)
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