The study of numbers for the supposed purpose of predicting future events or seeking connections with the occult.

Dudley, U. Numerology, or, What Pythagoras Wrought. Washington, DC: Math. Assoc. Amer., 1997.

CITE THIS AS:

Weisstein, Eric W. "Numerology." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/Numerology.html