Q: Is 216,520 a Prime Number?
A: No, 216,520 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 216520 can be evenly divided by 1 2 4 5 8 10 20 40 5,413 10,826 21,652 27,065 43,304 54,130 108,260 and 216,520, with no remainder.
Since 216,520 cannot be divided by just 1 and 216,520, it is not a prime number.