public/subjects/fprime.en.md

## fprime

### Instructions

Write a program that takes a positive `int` and displays its prime factors, followed by a newline (`'\n'`).

-   Factors must be displayed in ascending order and separated by `*`.

-   If the number of parameters is different from 1, the program displays a newline.

-   The input, when there is one, will always be valid.

### Usage

```console
student@ubuntu:~/piscine-go/test$ go build
student@ubuntu:~/piscine-go/test$ ./test 225225
3*3*5*5*7*11*13
student@ubuntu:~/piscine-go/test$ ./test 8333325
3*3*5*5*7*11*13*37
student@ubuntu:~/piscine-go/test$ ./test 9539
9539
student@ubuntu:~/piscine-go/test$ ./test 804577
804577
student@ubuntu:~/piscine-go/test$ ./test 42
2*3*7
student@ubuntu:~/piscine-go/test$ ./test a

student@ubuntu:~/piscine-go/test$ ./test 0

student@ubuntu:~/piscine-go/test$
```