Q: Is 561,028 a Prime Number?
A: No, 561,028 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 561028 can be evenly divided by 1 2 4 13 26 52 10,789 21,578 43,156 140,257 280,514 and 561,028, with no remainder.
Since 561,028 cannot be divided by just 1 and 561,028, it is not a prime number.