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103 (another Prime Pages' Curiosity) |
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The smallest prime whose reciprocal contains a period that is exactly 1/3 of the maximum length. [Wells] Illinois has two area codes that are multiples of 103: 309 (3 * 103) and 618 (6 * 103). [Litman] Proof, an award-winning play by David Auburn, revolves around a mysterious mathematical proof involving prime numbers left behind in 103 notebooks by a young woman's brilliant father. The least integer which is not sum or difference of two integers all whose prime factors are 2 and 3. [Crespi de Valldaura] The world's largest tree is the General Sherman Tree, a sequoia in Sequoia National Park, California. Its trunk is roughly 103 feet in circumference. [Jolly] The smallest prime comparable to all minimal primes in base 4. [Rupinski] 3 and 103 are prime, as are 3*2^103-1 and 103*2^3-1. There is no other pair of primes less than 1000 with this property. [Hartley] 103 + (10!)^3 is prime. [Patterson] M103 and NGC 103 are both open clusters of stars in Cassiopeia. [Necula] 103 divides the concatenation of the integers 103 down to 1. [De Geest] There are exactly 103 geometrical forms of magic knight's tour of the chessboard. The lowest number other than 1 that is impossible to score with two darts.
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