Q: Is 257,542 a Prime Number?
A: No, 257,542 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 257542 can be evenly divided by 1 2 61 122 2,111 4,222 128,771 and 257,542, with no remainder.
Since 257,542 cannot be divided by just 1 and 257,542, it is not a prime number.