Q: Is 258,407 a Prime Number?
A: Yes, 258,407 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 258407 can be evenly divided by 1 and 258,407, with no remainder.
Since 258,407 can be divided by just 1 and 258,407, it is a prime number.