Q: Is 212,321 a Prime Number?
A: No, 212,321 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 212321 can be evenly divided by 1 241 881 and 212,321, with no remainder.
Since 212,321 cannot be divided by just 1 and 212,321, it is not a prime number.