Q: Is 339,021 a Prime Number?
A: No, 339,021 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 339021 can be evenly divided by 1 3 9 139 271 417 813 1,251 2,439 37,669 113,007 and 339,021, with no remainder.
Since 339,021 cannot be divided by just 1 and 339,021, it is not a prime number.