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Composite numbers chart before 71

Here is the answer to questions like: Composite numbers chart before 71 . Get all the composite numbers from one to 71. Use the 'Composite Numbers Before Calculator' below to discover if any given number is composite or prime and get all the composites up to 71.

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 71:

The number 71 is a prime number because it is not possible to write it as a product of prime factors. In other words, 71 is only divided by 1 and by itself.

List of composite numbers before 71 (including 71 itself):

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.

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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.