Q: Is 21,097 a Prime Number?
A: No, 21,097 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 21097 can be evenly divided by 1 17 73 289 1,241 and 21,097, with no remainder.
Since 21,097 cannot be divided by just 1 and 21,097, it is not a prime number.