Q: Is 691,945 a Prime Number?
A: No, 691,945 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 691945 can be evenly divided by 1 5 138,389 and 691,945, with no remainder.
Since 691,945 cannot be divided by just 1 and 691,945, it is not a prime number.