Q: Is 321,875 a Prime Number?
A: No, 321,875 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 321875 can be evenly divided by 1 5 25 103 125 515 625 2,575 3,125 12,875 64,375 and 321,875, with no remainder.
Since 321,875 cannot be divided by just 1 and 321,875, it is not a prime number.