Q: Is 1,605,004 a Prime Number?
A: No, 1,605,004 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 1605004 can be evenly divided by 1 2 4 17 34 68 23,603 47,206 94,412 401,251 802,502 and 1,605,004, with no remainder.
Since 1,605,004 cannot be divided by just 1 and 1,605,004, it is not a prime number.