Q: Is 257,500 a Prime Number?
A: No, 257,500 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 257500 can be evenly divided by 1 2 4 5 10 20 25 50 100 103 125 206 250 412 500 515 625 1,030 1,250 2,060 2,500 2,575 5,150 10,300 12,875 25,750 51,500 64,375 128,750 and 257,500, with no remainder.
Since 257,500 cannot be divided by just 1 and 257,500, it is not a prime number.