Q: Is 977,991 a Prime Number?
A: No, 977,991 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 977991 can be evenly divided by 1 3 7 21 49 147 6,653 19,959 46,571 139,713 325,997 and 977,991, with no remainder.
Since 977,991 cannot be divided by just 1 and 977,991, it is not a prime number.