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55 (another Prime Pages' Curiosity) |
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55 is 5 times the 5th prime. [Woods] Every number greater than 55 is the sum of distinct primes of the form 4n + 3. [Wells] If sigma(n)/n is greater than 9, then n has at least 55 distinct prime factors. [Laatsch] Klimov (1975) showed that all integers are the sum of at most 55 prime numbers.
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