Q: Is 321,380 a Prime Number?
A: No, 321,380 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 321380 can be evenly divided by 1 2 4 5 10 20 16,069 32,138 64,276 80,345 160,690 and 321,380, with no remainder.
Since 321,380 cannot be divided by just 1 and 321,380, it is not a prime number.