Challange: PRIME FACTORIZATION

Question

Write a program that takes an positive integer value and returns all possible PRIME FACTORIZATION form 2 to x.
PRIME FACTORIZATION i for example 10 = 5*2, or 15 = 3*5 where 5, 3 and 2 are prime values.
Here is my version in c++:
https://code.sololearn.com/c7x240jpdnW2/#cpp

Answer 1

https://code.sololearn.com/cj5h05v8TAcU/?ref=app