Q: Is 309,439 a Prime Number?
A: No, 309,439 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 309439 can be evenly divided by 1 13 169 1,831 23,803 and 309,439, with no remainder.
Since 309,439 cannot be divided by just 1 and 309,439, it is not a prime number.