Q: Is 320,685 a Prime Number?
A: No, 320,685 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 320685 can be evenly divided by 1 3 5 15 21,379 64,137 106,895 and 320,685, with no remainder.
Since 320,685 cannot be divided by just 1 and 320,685, it is not a prime number.