Composite Numbers

200 is composite.

68 is a Composite Number.

It is a composite number.

1 is not considered to be a prime or composite number because it has only one factor which is itself.

The composite numbers you asked for: 100, 102, 104, 105, 106, 108, 110, 111, 112, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 128, 129, 130, 132, 133, 134, 135, 136, 138, 140, 141, 142, 143, 144, 145, 146, 147, 148, 150, 152, 153, 154, 155, 156, 158, 159, 160, 161, 162, 164, 165, 166, 168, 169, 170, 171, 172, 174, 175, 176, 177, 178, 180, 182, 183, 184, 185, 186, 187, 188, 189, 190, 192, 194, 195, 196, 198, 200.

It is a prime.

Yes

20 and 30 are.

23 is not.

1 and 0.

1 is neither a prime, nor a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.

15, 87, 145, 435

They are: 4 6 8 9 10 12 14 15 16 18.

You will find an interesting and accessible history of the notion of infinity at http://www.mathacademy.com/pr/minitext/infinity/ In the course of discussing the history, the article naturally discusses some of the varying concepts of infinity and who proposed them; and at the end of the article there is a "Link Library" button that will bring you to other sites about infinity.

720405 is a composite number - since it has a digit 5 at the end, you know that it is divisible by 5. Its positive integer factors are:

1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 2287, 6861, 11435, 16009, 20583, 34305, 48027, 80045, 102915, 144081, 240135, 720405

It is composite.

You describe a composite number by saying... A composite number is a number that has more factors than itself and 1.

111*3

It is composite because it has more than 2 factors

40 is composite.

A prime number, such as 3, has only two factors, one and the number itself. A composite number has more than two factors, for example 27, because it has 1, 3, 9, and 27 as factors.

There is no prime composite number; an integer greater than 2 can be either prime or composite, but not both.

Nor can you list all the prime number and all the composite numbers: you have infinite sets in both cases.

It is composite.

prime because 4.5 yards equals 13 feet and 13 is prime because theres no number you can multiply to get 13 that isnt 1 and itself

yes, all even numbers except for 2 are prime