The properties of composite numbers are easy to remember.
- Composite numbers have more than two factors
- Composite numbers are evenly divisible by their factors
- Each composite number is a factor of itself
- The smallest composite number is 4
- Each composite number will include at least two prime numbers as its factors (Eg. 10 = 2 x 5, where 2 and 5 are prime numbers)
- Composite numbers are divisible by other composite numbers also
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