Q: Is 257,080 a Prime Number?
A: No, 257,080 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 257080 can be evenly divided by 1 2 4 5 8 10 20 40 6,427 12,854 25,708 32,135 51,416 64,270 128,540 and 257,080, with no remainder.
Since 257,080 cannot be divided by just 1 and 257,080, it is not a prime number.