Q: Is 345,666 a Prime Number?
A: No, 345,666 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 345666 can be evenly divided by 1 2 3 6 53 106 159 318 1,087 2,174 3,261 6,522 57,611 115,222 172,833 and 345,666, with no remainder.
Since 345,666 cannot be divided by just 1 and 345,666, it is not a prime number.