Q: Is 518,085 a Prime Number?
A: No, 518,085 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 518085 can be evenly divided by 1 3 5 9 15 29 45 87 145 261 397 435 1,191 1,305 1,985 3,573 5,955 11,513 17,865 34,539 57,565 103,617 172,695 and 518,085, with no remainder.
Since 518,085 cannot be divided by just 1 and 518,085, it is not a prime number.