Q: Is 1,600,660 a Prime Number?
A: No, 1,600,660 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 1600660 can be evenly divided by 1 2 4 5 10 20 163 326 491 652 815 982 1,630 1,964 2,455 3,260 4,910 9,820 80,033 160,066 320,132 400,165 800,330 and 1,600,660, with no remainder.
Since 1,600,660 cannot be divided by just 1 and 1,600,660, it is not a prime number.