Q: Is 18,003 a Prime Number?
A: No, 18,003 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 18003 can be evenly divided by 1 3 17 51 353 1,059 6,001 and 18,003, with no remainder.
Since 18,003 cannot be divided by just 1 and 18,003, it is not a prime number.