Every even number except 2.
A composite number is a number which is not prime. All numbers are divided into the categories of either prime or composite (except for the number 1, which is neither). Examples of composite numbers are: 4,6,8,10 etc. All even numbers and square numbers are composite. There are, however, odd and non-square numbers that are composite as well, such as 15,21,27 and 55.
Composite numbers have more than two factors as for example 9 and 48
Even numbers are numbers that can be divided by 2 e.g 2,4,6,8,10
30 50 70 because they both end in 0 and 10 is a composite number
All composite numbers are not prime numbers because they have more than two factors
Composite numbers are the non prime numbers and have more than 2 factors. Some examples of composite numbers are 6, 8, 55 etc.
62 and 63 are two examples.
Composite numbers have factors other than 1 and itself. So, two good examples are: 62 and 84
A prime number has only 2 factors which are 1 and itself. Some examples are 3, 5, 7, 11, and 13. Composite numbers are everything else except 1, 2, and 0. Some examples are 4, 6, 8, 10, and 12.
Not all composite numbers are even, but all even numbers except 2 are composite.
== == Yes. Once we open the field from integers to composite numbers, the gloves come off and lots of things are possible. Example: 1 1/2 = 3 x 1/3. The factor 3 is prime. All composite numbers have prime numbers as factors. Examples: 4 is a composite number of 2 x 2. 38 is a composite number of 2 x 19. 66 is a composite number of 2 x 3 x 11. == ==
Rectangular numbers are a subset of composite numbers. The squares of prime numbers will be composite but not rectangular.