These are the integers which can be evenly divided into 31; they can be expressed as either individual factors or as factor pairs. In this case, we present them both ways.
A prime factorization is the result of factoring a number into a set of components which are all prime numbers. This is generally written by showing 31 as a product of its prime factors. For 31, this result would be:31 = 31
No! 31 is not a composite number. None of the two factor pairs were the same number. A composite number must be formed as the product of a smaller positive integer.
No! 31 is not a square number. The square root of this number (5.57) is not an integer.
This number has 2 factors: 1, 31
More specifically, shown as pairs...