Q: Is 604,605 a Prime Number?
A: No, 604,605 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 604605 can be evenly divided by 1 3 5 15 17 51 85 255 2,371 7,113 11,855 35,565 40,307 120,921 201,535 and 604,605, with no remainder.
Since 604,605 cannot be divided by just 1 and 604,605, it is not a prime number.