Q: Is 91,821 a Prime Number?
A: No, 91,821 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 91821 can be evenly divided by 1 3 127 241 381 723 30,607 and 91,821, with no remainder.
Since 91,821 cannot be divided by just 1 and 91,821, it is not a prime number.