That's called the prime factorization.
2x2x3x3x3
fdsgfhgdfhgdf
2x21x11
You can write out this algorithm. This will then be programmed into the device to make determining prime numbers easier.
A number as a product of prime numbers would be "x".
Prime factorization of 27 = 3x3x3
That's called the prime factorization.
You can't write that as the sum of two prime numbers. Note: Goldbach's Conjecture (for expressing numbers as the sum of two prime numbers) applies to EVEN numbers.
2x2x2x3
2x2x3x5
2x2x3x3x3
In the same way as you would write any integer.
fdsgfhgdfhgdf
Since there is an infinite set of prime numbers the answer would be infinity.
2x2x2x2x3x3=144
2x21x11