7.6
They are infinite, starting with these: 684, 1368, 2052, 2736 +684 . . .
4 is not divisible by 684. 684 is divisible by 4.
684 ÷ 2 = 342
The difference is 1070 minus 684 = 386
The product is 684
No. 684 is a composite number.
The LCM is: 684
It is 684/100 which can be simplified, if you so wish.
0.0073
684, 1368, 2052, 2736, 3420
1000 + 684 = 1684