Q: Is 428,676 a Prime Number?
A: No, 428,676 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 428676 can be evenly divided by 1 2 3 4 6 12 139 257 278 417 514 556 771 834 1,028 1,542 1,668 3,084 35,723 71,446 107,169 142,892 214,338 and 428,676, with no remainder.
Since 428,676 cannot be divided by just 1 and 428,676, it is not a prime number.