Q: Is 165,315 a Prime Number?
A: No, 165,315 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 165315 can be evenly divided by 1 3 5 15 103 107 309 321 515 535 1,545 1,605 11,021 33,063 55,105 and 165,315, with no remainder.
Since 165,315 cannot be divided by just 1 and 165,315, it is not a prime number.