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357 is the only threedigit number such that 2*357^3571 is prime. [Opao]
The smallest 3digit number with its digits being 3 distinct oddprimes that is not prime nor any of the permutations of its digits represent a prime number. [Sladcik] The prime numbers hockey player on YouTube misses the fact that 357 is composite. The larger of the only two sphenic numbers (product of three distinct primes) consisting of distinct prime digits. [Beedassy]
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