Q: Is 2,421,171 a Prime Number?
A: No, 2,421,171 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 2421171 can be evenly divided by 1 3 9 27 71 81 213 421 639 1,263 1,917 3,789 5,751 11,367 29,891 34,101 89,673 269,019 807,057 and 2,421,171, with no remainder.
Since 2,421,171 cannot be divided by just 1 and 2,421,171, it is not a prime number.