Q: Is 21,197 a Prime Number?
A: No, 21,197 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 21197 can be evenly divided by 1 11 41 47 451 517 1,927 and 21,197, with no remainder.
Since 21,197 cannot be divided by just 1 and 21,197, it is not a prime number.