Q: Is 606,991 a Prime Number?
A: No, 606,991 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 606991 can be evenly divided by 1 7 11 77 7,883 55,181 86,713 and 606,991, with no remainder.
Since 606,991 cannot be divided by just 1 and 606,991, it is not a prime number.