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Composite numbers list from 1 to 180

Here is the answer to questions like: Composite numbers list from 1 to 180 . Get all the composite numbers from one to 180. Use the 'Composite Numbers Before Calculator' below to discover if any given number is composite or prime and get all the composites up to 180.

Composite Numbers Before Calculator

Enter a natural number to calculate the composites before it:
Ex.: 10, 100, 64, 1000, ... until 20,000.
 

Composite Numbers Before 180:

The number 180 is not a prime number because it is possible to express it as a product of prime factors. In other words, 180 can be divided by 1, by itself and at least by 2, 3 and 5. So, 180 is a 'composite number'.

List of composite numbers before 180:

4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 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.

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Composite Number Definition

A composite number is a whole number that can be divided evenly by numbers other than 1 or itself.

A composite number n is a positive integer n>1 which is not prime (i.e., it can be divided by whole number other than 1 and itself).

Sample Numbers - Check if they are prime.