Q: Is 667,328 a Prime Number?
A: No, 667,328 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 667328 can be evenly divided by 1 2 4 8 16 32 64 10,427 20,854 41,708 83,416 166,832 333,664 and 667,328, with no remainder.
Since 667,328 cannot be divided by just 1 and 667,328, it is not a prime number.