Q: Is 428,766 a Prime Number?
A: No, 428,766 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 428766 can be evenly divided by 1 2 3 6 13 23 26 39 46 69 78 138 239 299 478 598 717 897 1,434 1,794 3,107 5,497 6,214 9,321 10,994 16,491 18,642 32,982 71,461 142,922 214,383 and 428,766, with no remainder.
Since 428,766 cannot be divided by just 1 and 428,766, it is not a prime number.