Q: Is 1,688,004 a Prime Number?
A: No, 1,688,004 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 1688004 can be evenly divided by 1 2 3 4 6 9 12 18 36 46,889 93,778 140,667 187,556 281,334 422,001 562,668 844,002 and 1,688,004, with no remainder.
Since 1,688,004 cannot be divided by just 1 and 1,688,004, it is not a prime number.