Referring to only positive integers, the smallest composite number is 4 (2 x 2). A composite number is any number that is the product of two or more prime numbers.
*Referring to all integers, it would be the negative number -9, (3 x -3), which is the also the arithmetically lowest one-digit number. However, under normal definitions, negative numbers are not considered prime or composite numbers.
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No. The number 2 is a prime number. The smallest, positive composite number is 4.
4, which is the square of the prime number 2, is the smallest composite number.
9
It is: 4
If it is a composite number, it is divisible by at least one prime number.