Q: Is 557,800 a Prime Number?
A: No, 557,800 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 557800 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 200 2,789 5,578 11,156 13,945 22,312 27,890 55,780 69,725 111,560 139,450 278,900 and 557,800, with no remainder.
Since 557,800 cannot be divided by just 1 and 557,800, it is not a prime number.