Q: Is 309,478 a Prime Number?
A: No, 309,478 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 309478 can be evenly divided by 1 2 13 26 11,903 23,806 154,739 and 309,478, with no remainder.
Since 309,478 cannot be divided by just 1 and 309,478, it is not a prime number.