4 is not divisible by 684. 684 is divisible by 4.
1.71
684, 1368, 2052, 2736, 3420, 4104 +684 . . .
It is: 684
yes 74
600 + 80 + 4
684
Yes it can.
76
The factor pairs of 684 are: 1 × 684 2 × 342 3 × 228 4 × 171 6 × 114 9 × 76 12 × 57 18 × 38 19 × 36
They are infinite, starting with these: 684, 1368, 2052, 2736 +684 . . .
4 × 9 × 19