Q: Is 328,509 a Prime Number?
A: No, 328,509 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 328509 can be evenly divided by 1 3 9 23 27 69 207 529 621 1,587 4,761 12,167 14,283 36,501 109,503 and 328,509, with no remainder.
Since 328,509 cannot be divided by just 1 and 328,509, it is not a prime number.