Pronunciation: /ˌmʌl təˈplɪ sɪ ti/ ?

The multiplicity of a math object is the number of times the math object occurs in a context.[1] For example, in the prime factorization of

2 appears twice, so it has a multiplicity of 2. 3 appears once, so it has a multiplicity of 1.


  1. Dickson, Leonard Eugene, Ph.D.. First Course in the Theory of Equations. New York, John Wiley and Sons Inc., 1922. (Accessed: 2009-12-18).
  2. multiplicity. WordNet. Princeton University. (Accessed: 2011-01-08).

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Multiplicity. 2009-12-18. All Math Words Encyclopedia. Life is a Story Problem LLC.


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2009-12-18: Added revision (McAdams, David.)
2008-12-16: Initial version (McAdams, David.)

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