1,2,3,6.So, it has four.
12 has six factors: 1, 2, 3, 4, 6, 12.
1, 2, 4, 5, 10, 20 Answer: 6
6 factors.6 of them.
16 factors.
8 factors.
Two factors.
4 factors.
6 factors.
6 factors.
Six factors: 1 2 4 13 26 52.
18 has 6 factors.
It has 4 factors (1,86 2,43) It has 4 factors (1,86 2,43)