Composite number
A composite number is a positive integer that can be factored as a product of two or more prime numbers. Every integer except one and zero is either a prime number or a composite number. The integer 14 is a composite number because it can be factored as 2 × 7.
Properties - All even numbers greater than 2 are composite numbers.
- All composite numbers are non-primes.
- The smallest composite number is 4.
- One has for all composite numbers greater than 4 (Wilson's theorem).
- Also, for all composite numbers greater than 4 (composite theorem).
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