Question

MCM de 3 15 12 9 2 Ι . I . I . I . I

Answer 1

3 - 15 - 12 - 9 - 2 | 2
3 - 15 -   6 - 9 - 2 | 2
3 - 15 -   3 - 9 - 1 | 3
1 -   5 -   1 - 3 - 1 | 3
1 -   5 -   1 - 1 - 1 | 5
1 -   1 -   1 - 1 - 1 |

MCM → $2^{2} . 3^{2}. 5$