Can an Arithmetic Progression have a D +6 ?
Why do n't we make an exception for the fundamental theorem of arithmetic that 1 is prime -LRB- divisible by 1 and itself -RRB- and tell that there are 2 unique sets of primes that we can be use to represent a composite number , for example : 6 = 2 * 3 == 6 = 2 * 3 * 1 ?