Number Gossip

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Unique Properties of 399

  • 399 is the smallest Lucas-Carmichael number
  • 399 is the smallest product of three distinct primes, such that the sum of the primes, the sum of the squares of the primes, and the sum of the cubes of the primes are all prime numbers

Common Properties of 399

Composite
Deficient
Evil
Lucky
Odd
Square-free