Prime Factors
Prime Factors are prime numbers which are factors to another number.
Any natural number is either a Prime Number or a composite of prime
numbers. All prime numbers which are factors of a number are called its prime
factors.
A Prime Number is a natural number greater than 1 and can only
be divided by 1 and itself.
To find the prime factors of a number; the easiest method is to start by dividing
the number by the smallest prime, i.e. 2. If not divisible, try the next prime which
is 3, if not try the next which is 5 and so on..
Use the following program to find all prime factors for each number in a range of numbers.