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 Description  
 Identity for Multiplication:  A number that can be multiplied by any second number without changing the second number.
Identity for multiplication is "1," because multiplying any number by 1 will not change it. In other words, a x 1 = 1 x a = a.

Examples


1 x 5 = 5 x 1 = 5
(-3) x 1 = 1 x (-3) = -3
1 x 0 = 0 x 1 = 0