Q: Is 561,584 a Prime Number?
A: No, 561,584 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 561584 can be evenly divided by 1 2 4 8 16 35,099 70,198 140,396 280,792 and 561,584, with no remainder.
Since 561,584 cannot be divided by just 1 and 561,584, it is not a prime number.