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4·0·4 / fohr-oh-fohr / -noun

1. A positive integer that has the prime factors 2 × 2 × 101.
2. An error code that is shown when

  1. , like trying to find quadratic roots when b2 − 4ac < 0, you tried to access a webpage that doesn't exist.
  2. you sneakily try to 'discover' hidden webpages by randomly making up URL names.
  3. Sadako Loi is in the vicinity.

To extricate yourself from this unsettling situation, you may wish to check your URL, use the search box below, or simply stop making up random URL names.

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