Q: Is the divides relation on the set of positive integers is reflexive?

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No, it is not.

No. A mean is another word for average. Can be negative, positive, or zero. As long as it adds 2 or more integers and divides it by the number of integers.

In math, the greatest common divisor (GCD) of two or more non-zero integers, is the largest positive integer that divides the numbers without a remainder.

The greatest common factor

It is composite because it is a positive integer greater than 1 which is not prime.In other words it is composite because there are other positive integers, beyond 1 and the number itself (57), which will evenly divide into it. 57 also evenly divides by 3 and 19.

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No it is not.

No, it is not.

Yes. Suppose x divides y then there exist an integer p such that y = px. Suppose y divides z then there exist an integer q such that z = qy. Therefore z = q*px = qp*x Since p and q are integers then pq is an integer and therefore x divides z. That is to say: if x divides y and y divides z, then x divides z.

No. A mean is another word for average. Can be negative, positive, or zero. As long as it adds 2 or more integers and divides it by the number of integers.

1, 2, 3, 6, 7, 14, 21

Multiplying and dividing integers is real easy. All you have to do is do regular dividing and multiplying keeping in mind these simple rules: RULES: 1: When multiplying or dividing integers, when the numbers are a positive, positive they equal a positive. When the numbers are negative, negative they equal a positive. In other words, same signs equal positive. 2: This rule is very similar to the rule above. The only change is that when the signs are different, they equal a negative. ( negative, positive= negative, positive, negative= negative.) Please correct me if I'm wrong. Multiply integers- my notes from class positive x positive= positive positive x negative= negative negative x negative= positive Divide integers- again my notes from class positive divided by a positive= positive negative divided by a negative= positive negative divided by a positive= negative Dividing integers are simple if the number has a different sign than the other it is always negative but if they have the same sign its always positive ex. -20/5=-4 ex. -20/-4=-5

In math, the greatest common factor (GCF) of two or more non-zero integers is the largest positive integer that divides the numbers without a remainder.

In math, the greatest common divisor (GCD) of two or more non-zero integers, is the largest positive integer that divides the numbers without a remainder.

Any positive integer, k, is a factor because it will divide larger integers of the form 2k, 3k etc. 147 divides 294, for example and so is a factor of 294.

The greatest common factor

Not enough information!The Greatest Common Factor (GCF), or Highest Common Factor (HCF), of two or more non-zero integers, is the largest positive integer that divides the numbers without a remainder.

Cannot be answered because in math, the greatest common divisor (GCD) of two or more non-zero integers, is the largest positive integer that divides the numbers without a remainder.