Even number
An even number is an integer that can be divided by two and remain an integer or has no not real remainder. For example, <math>16</math> is an even number, because <math>16\div 2=8</math>, and <math>8</math> is an integer. An even number may be either a negative integer like -16, a positive like 20 or Zero Integer.
Definition[change]
If an even number is divided by two, the result is another integer. Another way to say this is that even numbers are divisible by two. If <math>n</math> is an even number, we can write this as <math>2 \mid n</math>, which means "<math>2</math> divides <math>n</math>".
An integer that is not an even number is an odd number. The quality of being odd or even is called the parity of a number.
Since even numbers are integers, negative numbers can be even. For example, <math>-16</math> is an even negative number. Also, <math>0</math> is an even number, because <math>0\div 2 = 0</math>.
Related pages[change]
