Q: Is 42,003 a Prime Number?
A: No, 42,003 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 42003 can be evenly divided by 1 3 9 13 39 117 359 1,077 3,231 4,667 14,001 and 42,003, with no remainder.
Since 42,003 cannot be divided by just 1 and 42,003, it is not a prime number.