Q: Is 603,989 a Prime Number?
A: Yes, 603,989 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 603989 can be evenly divided by 1 and 603,989, with no remainder.
Since 603,989 can be divided by just 1 and 603,989, it is a prime number.