Q: Is 561,004 a Prime Number?
A: No, 561,004 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 561004 can be evenly divided by 1 2 4 139 278 556 1,009 2,018 4,036 140,251 280,502 and 561,004, with no remainder.
Since 561,004 cannot be divided by just 1 and 561,004, it is not a prime number.