Q: Is 645,097 a Prime Number?
A: Yes, 645,097 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 645097 can be evenly divided by 1 and 645,097, with no remainder.
Since 645,097 can be divided by just 1 and 645,097, it is a prime number.