There are two ways in which the factors can be given.
You are given all the prime factors (and their multiplicity). In that case simply multiply them all together.
Or
You are given each factor. In this case, the biggest of these is the number.
If the given number has two factors, one of them is 1.
Yes.
It varies with each given number.
distinct factors
First of all, to know if a number is abundant, deficient, or perfect, you need to know all the factors of your given number. The factors of 28 are 1,2,4,7,14, and 28. Add your proper factors -or the factors except itself- and determine if the sum of the proper factors is below (deficient), above (abundant), or the exact same amount (perfect). In this case, if you add the proper factors, it equals exactly 28. Because it is exact, it is perfect! =)
You multiply the factors together. if the factors are 6 and 7 or 2,3 and 7, then the number is 6x7=2x3x7=42
All numbers have factors. Some factors are prime numbers. These are known as prime factors. The set of prime factors is a subset of the set of factors for any given number.
distinct factors
They're called the "factors" of the given number.
A factor is a number or quantity that when multiplied with another produces a given number or expression.
A factor is a number or quantity that when multiplied with another produces a given number or expression.
Since there are an infinite number of prime numbers, there are infinite numbers with any given number of prime factors.