A composite number is a whole number greater than 1 that has more than two positive factors, including 1 and itself; equivalently, it can be expressed as a product of two smaller whole numbers. Within numbers through 100, this understanding includes identifying factor pairs or rectangular arrays, distinguishing composite numbers from primes with exactly two factors, and recognizing that 1 is neither prime nor composite; it supports later work with factorization and divisibility.
A composite number is a whole number greater than that has more than two positive factors. Another way to recognize one is to write it as a product of two smaller whole numbers.
Example: Is composite?
where both factors are smaller than .
A number with exactly two factors, and itself, is prime. The number is neither prime nor composite.
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