NUM·LORE
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664

Tier · Algorithmic

Algorithmic encodings for 664.

adjacent   663  ·  665

T9 keypad

  • MNO MNO GHI

    T9 phone-keypad letter set per digit

Leet

  • GGA

    leet substitution: 0=O, 1=I, 3=E, 4=A, 5=S, 7=T, etc.

Math

  • 2 × 2 × 2 × 83

    prime factorization