Q: Is 520,864 a Prime Number?
A: No, 520,864 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 520864 can be evenly divided by 1 2 4 8 16 32 41 82 164 328 397 656 794 1,312 1,588 3,176 6,352 12,704 16,277 32,554 65,108 130,216 260,432 and 520,864, with no remainder.
Since 520,864 cannot be divided by just 1 and 520,864, it is not a prime number.