Q: Is 320,385 a Prime Number?
A: No, 320,385 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 320385 can be evenly divided by 1 3 5 13 15 31 39 53 65 93 155 159 195 265 403 465 689 795 1,209 1,643 2,015 2,067 3,445 4,929 6,045 8,215 10,335 21,359 24,645 64,077 106,795 and 320,385, with no remainder.
Since 320,385 cannot be divided by just 1 and 320,385, it is not a prime number.