There are many possible answers, of which, one is:
t(n) = (n3 - 21n2 + 134n - 96)/3 for n = 1, 2, 3, ...
4 8 12 16 20 24 28 32 36 40 44 48 52 56 60
The GCF is 8.
24, 32, 40, 48, 56, 64
3360
8, 16, 24, 32, 40, 48, 56, 64.
The GCF is 8.
8, 16, 24, 32. 40, 48, 56 They increase by 8 each time
8 16 24 32 40 48 56 64 72 808, 16, 24, 32, 40, 48, 56, 64, 72, 80
The first 10 multiples of 8 are: 8, 16, 24, 32, 40, 48, 56, 64, 72, and 80.
8 16 24 32 40 48 56 64 72 80 88 96 1048, 16, 24, 32 and so on.
The GCF is 8.
The multiples of 8 between 30 and 90 are: 32, 40, 48, 56, 64, 72, 80, and 88.