Q: Is 4,166,991 a Prime Number?
A: No, 4,166,991 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 4166991 can be evenly divided by 1 3 9 27 154,333 462,999 1,388,997 and 4,166,991, with no remainder.
Since 4,166,991 cannot be divided by just 1 and 4,166,991, it is not a prime number.