Q: Is 516,820 a Prime Number?
A: No, 516,820 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 516820 can be evenly divided by 1 2 4 5 10 20 25,841 51,682 103,364 129,205 258,410 and 516,820, with no remainder.
Since 516,820 cannot be divided by just 1 and 516,820, it is not a prime number.