Q: Is 855,015 a Prime Number?
A: No, 855,015 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 855015 can be evenly divided by 1 3 5 7 15 17 21 35 51 85 105 119 255 357 479 595 1,437 1,785 2,395 3,353 7,185 8,143 10,059 16,765 24,429 40,715 50,295 57,001 122,145 171,003 285,005 and 855,015, with no remainder.
Since 855,015 cannot be divided by just 1 and 855,015, it is not a prime number.