Q: Is 691,655 a Prime Number?
A: No, 691,655 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 691655 can be evenly divided by 1 5 43 215 3,217 16,085 138,331 and 691,655, with no remainder.
Since 691,655 cannot be divided by just 1 and 691,655, it is not a prime number.