Q: Is 171,585 a Prime Number?
A: No, 171,585 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 171585 can be evenly divided by 1 3 5 9 15 27 31 41 45 93 123 135 155 205 279 369 465 615 837 1,107 1,271 1,395 1,845 3,813 4,185 5,535 6,355 11,439 19,065 34,317 57,195 and 171,585, with no remainder.
Since 171,585 cannot be divided by just 1 and 171,585, it is not a prime number.