No it is not.
No.
All multiples of 520, which is an infinite number.
Yes, 520 / 2 = 260
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Yes, the result is 130.
39, 78, 117, 195, 312 and 936 are divisible by three.
30% of 520 = 156= 30%/100% * 520= 3/10 * 520= 0.3 * 520= 156
No, it is divisible by 3.No, it is divisible by 3.No, it is divisible by 3.No, it is divisible by 3.
3/4 of 520 is 390.
It is divisible by 3, for example.It is divisible by 3, for example.It is divisible by 3, for example.It is divisible by 3, for example.
Just multiply 260 by numbers: 520 (2x), 780 (3x), etc.
All multiples of 260 (which are infinite) including 260, 520, 780, 1040, 1300 . . .