The numbers are: -5 and 3
111 = 3*37
The three prime numbers which multiply to make 231 are 3 x 7 x 11.
There are 4 of them which are 2*3*3*3 = 54
To make 9, you can multiply 3 by 3 since 3 is a prime number. To make 10, you can multiply 2 by 5, both of which are prime numbers. Finally, to make 12, you can multiply 2 by 2 by 3, as 2 and 3 are prime numbers. By multiplying these prime numbers together, you can obtain the desired results of 9, 10, and 12.
264
135
The numbers are: -5 and 3
111 = 3*37
8 X 11
1, 3, 13, 39.
135
513
-5 and +3
The three prime numbers which multiply to make 231 are 3 x 7 x 11.
There are 4 of them which are 2*3*3*3 = 54
5 and -3