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The sum of the prime factors of 714 is 2 + 3 + 7 + 17 = 29, and the sum of the prime factors of 714 + 1 is 5 + 11 + 13 = 29. Pomerance named these pairs "Aaron numbers." The 714th century will be first century to have more prime years than semiprime years (13 to 12). [Gaydos]
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