Q: Is 328,005 a Prime Number?
A: No, 328,005 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 328005 can be evenly divided by 1 3 5 9 15 37 45 111 185 197 333 555 591 985 1,665 1,773 2,955 7,289 8,865 21,867 36,445 65,601 109,335 and 328,005, with no remainder.
Since 328,005 cannot be divided by just 1 and 328,005, it is not a prime number.