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The '''multiplicative identity''' for a [[ring]] or [[field]] is the [[element]], ''i'', of the set that, when multiplied by any element ''a'' in the set yields an answer of ''a''. In the [[integers]], [[rational numbers]], and [[real numbers]], the multiplicative identity is 1.
The '''multiplicative identity''' for a [[ring]] or [[field]] is the [[element]], ''i'', of the set that, when multiplied by any element ''a'' in the set yields an answer of ''a''. In the [[integers]], [[rational numbers]], and [[real numbers]], the multiplicative identity is 1.
For any number a: a x 1 = a and 1 x a = a.
==See also==
[[Identity Element]]
[[Category:Algebra Terms]]
[[Category:Algebra]]
[[Category:Mathematics]]
[[Category:Mathematics]]