Number Gossip

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Unique Properties of 773

  • 773 is the smallest prime p with property that appending or prepending any single decimal digit to p does not produce a prime
  • 773 is the smallest home prime that is home to five primes
  • 773 is the smallest Henry VIII prime: it is left-truncatable, but can't be left-truncated from another prime
  • 773 is the smallest odd number n so that n+2k is composite for all k less than n
  • 773 is the largest three-digit Unholey prime: such primes do not have holes in their digits

Common Properties of 773