Q: Is 764,221 a Prime Number?
A: No, 764,221 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 764221 can be evenly divided by 1 23 149 223 3,427 5,129 33,227 and 764,221, with no remainder.
Since 764,221 cannot be divided by just 1 and 764,221, it is not a prime number.