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Charles Jean de la Vallée-Poussin

French mathematician

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Charles Jean de la Vallée-Poussin was a French mathematician who, along with Jacques-Salomon Hadamard, independently proved the prime number theorem in 1896. This theorem provides an approximation for the number of primes less than or equal to a given number x, stating that as x approaches infinity, the number of primes, denoted as π(x), approaches x/ln(x).12

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