Q: Is 225,821 a Prime Number?
A: Yes, 225,821 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 225821 can be evenly divided by 1 and 225,821, with no remainder.
Since 225,821 can be divided by just 1 and 225,821, it is a prime number.