Q: Is 139,815 a Prime Number?
A: No, 139,815 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 139815 can be evenly divided by 1 3 5 9 13 15 39 45 65 117 195 239 585 717 1,195 2,151 3,107 3,585 9,321 10,755 15,535 27,963 46,605 and 139,815, with no remainder.
Since 139,815 cannot be divided by just 1 and 139,815, it is not a prime number.