Q: Is 556,289 a Prime Number?
A: Yes, 556,289 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 556289 can be evenly divided by 1 and 556,289, with no remainder.
Since 556,289 can be divided by just 1 and 556,289, it is a prime number.