Is 11 an even number

Answer 1

By definition, a number is called "even" if it can be divided by 2 with no remainder. If the number gives a remainder of 1 when divided by 2, it is called an odd number. Therefore, 11 is an odd number, since 11/2 = 5 with a remainder of 1 and thus it is not an even number. 10 would be an example of an even number.

Additional information:

There is semantic ambiguity present with this kind of question. Are we to assume that the number is being referenced using common base 10 notation or are we asking a more general question that involves a number represented by the specified symbols. In particular, in some number systems, such as binary or hexadecimal, 11 is also odd. For example, in the binary number system, 11 (base 2) is 3 (base 10). In the hexadecimal system, 11 (base 16) = 17 (base 10). HOWEVER, in some number systems, 11 is even. For example, 11 (base 3) = 4 (base 10) which is even.

Even though the number 11 has two digits and 2 is an even number, it doesn't make the number itself even.