Q: Is 247,605 a Prime Number?
A: No, 247,605 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 247605 can be evenly divided by 1 3 5 15 17 51 85 255 971 2,913 4,855 14,565 16,507 49,521 82,535 and 247,605, with no remainder.
Since 247,605 cannot be divided by just 1 and 247,605, it is not a prime number.