Yes, 28 is an integer.
28
Yes, -28 is an integer because it is a whole number that can be positive or negative. It is also a rational number because it can be expressed as a fraction, in this case, -28/1. Since any rational number is also a real number, -28 is also a real number.
No, it is not.
No such integer exists. The LCM of 16 and 28 is 112.
-28/1000 is one possible answer.
The only positive integer is 1.
5728 is an integer and so cannot be expressed as a mixed number in any meaningful way.
No it is not. This is because 28/6 = 4.6 recurring, or 4 and 2/3. For 6 to be a factor of 28, the answer must be a whole number, or integer.
No, it is not.
No positive integer less than 19 has more factors than 28 does.
28 is not a perfect square. A perfect square is an integer that is the square of another integer. 9 is a perfect square; it equal to 3 squared, or 3 X 3. Often, such numbers are called simply square numbers. While 28 is not a perfect square, it is a square number in the sense that it has a square root. by definition, the square root of 28 times itself equals 28.
No, 3.4 is not an integer. It is a rational number and a real number, but not an integer.