Q: Is 2,540,021 a Prime Number?
A: No, 2,540,021 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 2540021 can be evenly divided by 1 11 17 47 187 289 517 799 3,179 4,913 8,789 13,583 54,043 149,413 230,911 and 2,540,021, with no remainder.
Since 2,540,021 cannot be divided by just 1 and 2,540,021, it is not a prime number.