Q: Is 516,428 a Prime Number?
A: No, 516,428 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 516428 can be evenly divided by 1 2 4 11 22 44 97 121 194 242 388 484 1,067 1,331 2,134 2,662 4,268 5,324 11,737 23,474 46,948 129,107 258,214 and 516,428, with no remainder.
Since 516,428 cannot be divided by just 1 and 516,428, it is not a prime number.