Q: Is 85,605 a Prime Number?
A: No, 85,605 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 85605 can be evenly divided by 1 3 5 13 15 39 65 195 439 1,317 2,195 5,707 6,585 17,121 28,535 and 85,605, with no remainder.
Since 85,605 cannot be divided by just 1 and 85,605, it is not a prime number.