Q: Is 2,101,521 a Prime Number?
A: No, 2,101,521 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 2101521 can be evenly divided by 1 3 31 59 93 177 383 1,149 1,829 5,487 11,873 22,597 35,619 67,791 700,507 and 2,101,521, with no remainder.
Since 2,101,521 cannot be divided by just 1 and 2,101,521, it is not a prime number.