Q: Is 840,660 a Prime Number?
A: No, 840,660 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 840660 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 60 14,011 28,022 42,033 56,044 70,055 84,066 140,110 168,132 210,165 280,220 420,330 and 840,660, with no remainder.
Since 840,660 cannot be divided by just 1 and 840,660, it is not a prime number.