Q: Is 606,666 a Prime Number?
A: No, 606,666 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 606666 can be evenly divided by 1 2 3 6 101,111 202,222 303,333 and 606,666, with no remainder.
Since 606,666 cannot be divided by just 1 and 606,666, it is not a prime number.