Q: Is 257,918 a Prime Number?
A: No, 257,918 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 257918 can be evenly divided by 1 2 128,959 and 257,918, with no remainder.
Since 257,918 cannot be divided by just 1 and 257,918, it is not a prime number.