Q: Is 258,438 a Prime Number?
A: No, 258,438 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 258438 can be evenly divided by 1 2 3 6 19 38 57 114 2,267 4,534 6,801 13,602 43,073 86,146 129,219 and 258,438, with no remainder.
Since 258,438 cannot be divided by just 1 and 258,438, it is not a prime number.