Number Gossip

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Unique Properties of 126

  • 126 is the number of prime days in a non-leap year
  • The prime gap that covers the first century with no primes (from 1671800 to 1671899) has length 126 (from 1671781 to 1671907)
  • 126 is the smallest multidigit number such that the sum of its distinct prime factors equals the product of its digits: the prime factors of 126 are 2, 3, and 7, that sum to 12, which is the product of the digits 1, 2, and 6
  • 126 is the smallest vampire number
  • 126 is the number of intersections of diagonals inside a regular nonagon
  • 126 is the smallest non-palindrome that is a product of 4 primes whose reverse is also a product of 4 primes

Rare Properties of 126


Common Properties of 126