Q: Is 320,739 a Prime Number?
A: No, 320,739 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 320739 can be evenly divided by 1 3 17 19 51 57 323 331 969 993 5,627 6,289 16,881 18,867 106,913 and 320,739, with no remainder.
Since 320,739 cannot be divided by just 1 and 320,739, it is not a prime number.