Q: Is 257,342 a Prime Number?
A: No, 257,342 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 257342 can be evenly divided by 1 2 223 446 577 1,154 128,671 and 257,342, with no remainder.
Since 257,342 cannot be divided by just 1 and 257,342, it is not a prime number.