Q: Is 345,258 a Prime Number?
A: No, 345,258 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 345258 can be evenly divided by 1 2 3 6 9 18 19,181 38,362 57,543 115,086 172,629 and 345,258, with no remainder.
Since 345,258 cannot be divided by just 1 and 345,258, it is not a prime number.