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A friend of mine told me that (by his teacher) 0 is an even and positive number, how can it be?
NateTG said:Depending on the situation, zero may be considered to be positive, negative, both, or neither.
In some computers, negative and positive zero may be different, but in normal mathematics, whether zero is considered to be positive depends somewhat on context.
Yes, 0 is an even number because it is divisible by 2 with no remainder.
No, 0 is not a positive number because it is neither greater than nor less than 0. It is considered a neutral number.
No, 0 is not an odd number because it does not have a remainder of 1 when divided by 2. Odd numbers always have a remainder of 1.
No, 0 is not a prime number because it has more than two factors (1 and itself). Prime numbers have only two factors.
Yes, 0 is a whole number because it is a non-negative integer (counting number) and does not have any fractional or decimal parts.