Q: Is 556,637 a Prime Number?
A: No, 556,637 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 556637 can be evenly divided by 1 233 2,389 and 556,637, with no remainder.
Since 556,637 cannot be divided by just 1 and 556,637, it is not a prime number.