Q: Is 345,003 a Prime Number?
A: No, 345,003 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 345003 can be evenly divided by 1 3 115,001 and 345,003, with no remainder.
Since 345,003 cannot be divided by just 1 and 345,003, it is not a prime number.