Q: Is 553,123 a Prime Number?
A: Yes, 553,123 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 553123 can be evenly divided by 1 and 553,123, with no remainder.
Since 553,123 can be divided by just 1 and 553,123, it is a prime number.