Composite numbers.Example: 17- factors of 17...1 and 17- This is a prime number.Example: 18- factors of 18...1,2,3,6,9,18- This is a composite number.
Composite.
prime number
-13 is rational and an integer.
48 has factors other than 1 and itself, so it is not a prime number. It is an even number that is greater than 2, so it also has 2 as a factor. Therefore, it is a composite number. All even numbers greater than 2 are composite numbers.No number that ends in an '8' can be prime; it is at least divisible by 2. Use this kind of thinking to derive the other factors of 48.
A whole number is not a set of any kind and so cannot be a subset of rational numbers.
Composite numbers.Example: 17- factors of 17...1 and 17- This is a prime number.Example: 18- factors of 18...1,2,3,6,9,18- This is a composite number.
You can add a period, and a zero, after the whole number. Or you can just consider the whole numbers themselves a special kind of "decimal number".
There are more composite numbers than prime numbers, but there is no prime or composite number so great that you can't find a greater one of either kind.
The square of every positive or negative even whole number is a positive even whole number. The square of every positive or negative odd whole number is a positive odd whole number. There are an infinite number of each kind.
No. An integer is a kind of number - a whole number - but not all numbers are integers. For example, a half is a number but it is not an integer.
No. Although the count of either kind of number is infinite, the cardinality of irrational numbers is an order of infinity greater than for the set of rational numbers.
Only even numbers are divisible by two. If you have an odd number, for example 3, and divide by two, you will get 1 with a remander of 1.
The number twenty-five is not the same number as thirteen because they are each one of a kind and numbers are the the same as any other numbers. They are the same as numbers but not the same in value. 25 is greater than 13 by 12.
Assuming that you mean opposites (rather than oppisites), the answer will depend on what kind of opposites: additive opposites or multiplicative opposites.In the first case you have the same set as you started with: whole numbers.In the second, you will have the set that consists of the union ofall whole numbers,all unit fractions between -1 and +1. But, you have a problem with zero: its multiplicative opposite is not defined.
Whole numbers with more than two factors.
All positive whole numbers over 1 can be classified either as prime or composite numbers. Those which are not prime are composite numbers, that is, numbers which are composed of several different factors.