Q: Is 516,438 a Prime Number?
A: No, 516,438 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 516438 can be evenly divided by 1 2 3 6 9 13 18 26 39 78 117 234 2,207 4,414 6,621 13,242 19,863 28,691 39,726 57,382 86,073 172,146 258,219 and 516,438, with no remainder.
Since 516,438 cannot be divided by just 1 and 516,438, it is not a prime number.