Can a divisor be negative? Can a negative number be reduced?

There can be no negative numbers, according to the concept of common divisor and least common divisor, the common divisor and divisor can only be positive, zero cannot be counted as a divisor, or there can be no minimum common divisor, the least common divisor is zero!

No, at least we didn't say there was in the second year of junior high school...

Of course not.

It can only be in a positive number.

A factor, also known as a divisor, is an integer with no remainder divided by n for the integer n. Comparatively speaking, n is called a multiple of this factor. The factor is not limited to positive or negative, and you can use Factor |Multiples or multiples of 0 (mod factor) (see congruence).

I think you all have a point, but I've never seen a negative approximation in my master's degree! Maybe the teacher didn't teach!

No, the teachers didn't teach!

Kindness.. It shouldn't be, the brother above seems to have explained why.

I think he's right.

No, I haven't heard of it.

Both divisors and prime numbers are defined in a range of positive integers.

Prime numbers are also called prime numbers. A prime number is a number with a divisor of only 1 and itself. The number of prime numbers is infinite.

Prime factors are divisors: factors of a composite number, and these factors are prime numbers.

A divisor is a divisor that is divisible by all integers that are divisible by the original number.

Composite number: The divisor of a number has other divisors in addition to 1 and itself, and this number is called a composite number.

2 is not a composite number, and 1 is neither prime nor composite.

Negative number operation of division: negative number 1 negative number 2 = (negative number 1 negative number 2) = positive number; Negative Positive = (Negative Positive) = Negative. In general, the division of the same sign equals a positive number, and the division of a different sign equals a negative number.

Calculation rules: 1. The negative number operation rule of addition: negative number 1 + negative number 2 = - (negative number 1 + negative number 2) = negative number; Negative number + positive number = sign takes the sign of the addition with the greater absolute value, and the value takes the value obtained by "subtracting the smaller absolute value from the larger absolute value".

2. The negative number operation rule of subtraction: negative number 1 negative number 2 = negative number 1 + (negative number 2) = negative number 1 plus the opposite number of negative number 2, and then calculate according to the method of negative number plus positive number; Negative Positive = (Positive + Negative) = Negative Subtract the two numbers of different signs, which is equal to the addition of their absolute values.

3. The negative number operation rule of multiplication: negative number 1 negative number 2 = (negative number 1 negative number 2) = positive number; Negative Positive = (Positive Negative) = Negative.

1. To see how many decimal places it is, add a few 0s as the denominator after 1.

2. Destroy the original decimal of the circle and remove the decimal point to make the numerator.

3. The offer points that can be contracted.

For example, two decimal places - add 2 0s after 1 as the denominator (that is, 100) - remove the decimal point as the numerator (that is, 25) - the fraction is 125/100 - about 1/4 after the minute

Finite decimal fraction: the first digit of the denominator is 1 followed by 0, the number of 0 is the same as the number of decimal places, the numerator is to take the finite decimal as an integer, and the number to the right of the decimal point is regarded as an integer as a numerator, but does not include the tenth place and percentile to the right of the decimal point.

,.. thousandth0, can be reduced to a fraction, for example: will be reduced to a fraction, that is, 678 1000 = 339 500, with a decimal (mixed decimals) into a fraction:

For example: will be reduced into fractions, solution: because, so, , into fractions, and so on, can be reduced to a fraction must be simplified;

Negative decimal fractions are converted into fractions in the same way as above

For example: -0186 = -186 999 = -62 333,,, and so on, and so on.

Prior to the University Stove Jixiang, the term divisor was generally limited to positive divisions. Divisor, also known as factor. The quotient of the integer a divided by the integer b(b≠0) is exactly an integer without a remainder, and we say that a is divisible by b, or b is divisible by a multiple of the echo called b, and b is called the divisor of a.

Approximate overviewWithin the range of natural numbers (0 and positive integers), any positive integer is a divisor of 0.

The positive divisor of 4 is .

The positive divisor of 6 is .

The positive divisor of 10 is .

The positive divisor of 12 is .

The positive divisor of 15 is .

The positive divisor of 18 is .

Note: The divisor of a number necessarily includes 1 and itself.

A negative number is the opposite of a positive number.

Negative numbers are mathematical terms, and numbers smaller than 0 are called negative numbersNegative numbers are positive numbers with opposite meanings. Negative numbers are marked with a minus sign" and a positive number, such as 2, which represents the opposite of 2. As a result, any positive number preceded by a negative sign becomes a negative number.

A negative number is the opposite of its absolute value, Sun Meng.

Characteristics of negative numbers:If the negative numbers are all smaller than zero, then the negative numbers are all smaller than the positive numbers. Zero is neither positive nor negative. Then -a.

There is no smallest number in a negative number, and there is no largest number.

The negative sign before removing the negative number is equal to the absolute value of the negative number.

For example, the absolute value of -2 is 2, the absolute value of -45 is 45, and so on.

Fractions can also be negative, e.g. -2 5.

The square root of a negative number is represented by an imaginary unit "i". The largest negative integer is: 1. There is no minimum negative number.

In domestic textbooks, the concept of divisor was first mentioned in elementary school, when negative numbers were not yet learned.

When you learn negative numbers, you generally don't strictly define divisors until the "Elementary Number Theory" of the Department of Mathematics at the university, and negative divisors are included at that time.

If d|a and d 0, then we say d is the divisor of a. Note, d|a if and only if (-d)|a, so defining a divisor as a non-negative integer does not lose generality, as long as it is understood that the corresponding negative of any divisor of a is equally divisible by a. The divisor of an integer a is at least 1 and at most |a|。

What is the sum of the negative divisors of 105?

All negative divisors of 105 are the set of the opposite of all positive divisors of 105.

The positive divisors of 105 are 1,3,5,7,15,21,35,105105 and the negative divisors are -1,-3,-5,-7,-15,-21,-35,-105

What are the natural numbers with 6 divisors among the natural numbers whose sum is -(1+3+5+7+15+15+21+35+105) = 192100?

What are the natural numbers with 10 divisors within 100?

The sum of two numbers is 50, and their greatest common divisor is 5, find these two numbers.

No. The definition of a composite number limits its scope.

A composite number is an integer greater than 1, and a number that is divisible by other numbers in addition to 1 and itself is a composite number. That is, there are more than 2 divisors that are composite. For example, 9 is a composite number because it has more than 2 divisors

Therefore, it cannot be negative.

No, because the composite number is in the range of positive integers.