Q: Is 309,966 a Prime Number?
A: No, 309,966 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 309966 can be evenly divided by 1 2 3 6 19 38 57 114 2,719 5,438 8,157 16,314 51,661 103,322 154,983 and 309,966, with no remainder.
Since 309,966 cannot be divided by just 1 and 309,966, it is not a prime number.