No it is not.
No.
All multiples of 520, which is an infinite number.
Hdhdjkg
Yes, the result is 130.
2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260.
260
Yes, 520 divided by 2 = 260
520 = 2 × 2 × 2 × 5 × 13
Just multiply 260 by numbers: 520 (2x), 780 (3x), etc.
520 / \ 2 260 / \ 130 2 / \ 65 2 / \ 5 13
1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520