![]() ![]() (sequence A002808 in the OEIS)Įvery composite number can be written as the product of two or more (not necessarily distinct) primes. įor example, the integer 14 is a composite number because it is the product of the two smaller integers 2 × 7. Every positive integer is composite, prime, or the unit 1, so the composite numbers are exactly the numbers that are not prime and not a unit. ![]() Equivalently, it is a positive integer that has at least one divisor other than 1 and itself. Comparison of prime and composite numbersĪ composite number is a positive integer that can be formed by multiplying two smaller positive integers. ![]()
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