Q: Is 666,708 a Prime Number?
A: No, 666,708 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 666708 can be evenly divided by 1 2 3 4 6 7 12 14 21 28 42 84 7,937 15,874 23,811 31,748 47,622 55,559 95,244 111,118 166,677 222,236 333,354 and 666,708, with no remainder.
Since 666,708 cannot be divided by just 1 and 666,708, it is not a prime number.