Q: Is 321,140 a Prime Number?
A: No, 321,140 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 321140 can be evenly divided by 1 2 4 5 10 20 16,057 32,114 64,228 80,285 160,570 and 321,140, with no remainder.
Since 321,140 cannot be divided by just 1 and 321,140, it is not a prime number.