All numbers - integers as well as non-integers - are combined using different mathematical operations. Some operators are binary: that is, they combine two numbers to produce a third; some are ternary (combine 3 to produce a fourth) and so on.
The set of integers is closed under some operations: common examples are addition, subtraction, multiplication, exponentiation. But not all operators are: division, for example.
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That depends how you want to "combine" them.
You get another integer that will take the sign from the larger of the two integers that were combined.
2436 and 1624 are integers, not fractions. And, as integers, they are unequal.2436 and 1624 are integers, not fractions. And, as integers, they are unequal.2436 and 1624 are integers, not fractions. And, as integers, they are unequal.2436 and 1624 are integers, not fractions. And, as integers, they are unequal.
You multiply the numbers like you multiply integers. Count how many numbers are after the decimal points in both numbers combined and move the decimal point in front of the answer.
The set of integers is divided into three subsets. One is the positive integers. Another is the negative integers. The last subset has one element -- zero. In sum, integers are composed of the positive integers, the negative integers, and zero.